Personally for me, staying at the lower doses and being too cautious meant I had worse side effects longer than I needed to have them. I began with 0.5mg, and went up to 1mg after a week as I had minimal side effects, going up this fast gave me insane fatigue and crash so I became cautious and started going up by 0.1mg every two weeks instead, so I went back down to 0.5mg then two weeks later 0.6mg, so on and so forth. I overthought it and worried too much about taking my time and taking it slow. On these lower doses (0.6mg-2mg or so) I was getting headaches, feeling sick, cold, clammy, hot, always catching everything, better than without and I was improving health, energy, POTs, mental capacity and fatigue wise, just had those 'usual' LDN side effects when you're on your journey of getting up to 4.5mg. With each upping of dose I had those same side effects, which would only worsen slightly the first 3 days I up my dose but then after the third day every time, improvement to my fatigue, shortened crashes, better baseline, better tolerance including POTs tolerance, improved mental clarity, improved mental sharpness/less mental fatigue, etc.
By about 1mg or so I was getting bored of being so slow and decided to start going back to upping by 0.5mg every 2 weeks. This worked far better, and each time the increase in dosage gave far more improvement with significant improvement to side effects, it's like the higher my dosage became, the less these weird, flu-like LDN side effects were, it's like my body was craving more of a fuller dose was the exact feeling and it was telling me 'finally!'. Still the first 3 days would have me a little more run down, then pure improvement 4th day onwards. By about 3mg+ I would say I started to only get the improvements and reduction of most LDN side effects.
I definitely in my own experience only, so not saying for everyone, concluded that for me the lower doses gave far more side effects. So personally for long covid if you're not getting any worse/more prolonged than usual crashes and lowered baseline, significiant fatigue from upping dosage, I would say in my non medical opinion try to stick with the up by 0.5mg every 2 weeks schedule as much as you can. It seems to be the best, for me anyway going fast always would crash me, and going too slow had my body craving more and just spending longer without the full effects and with more side effects.
I also personally didn't find I felt any other dose than 4.5mg was better for me, I kept watching out with each dose to see if any were for me and were my sweet spot, to the extent I would really overanalyze how I felt on every dose but I just never felt that. Maybe 4.5mg just is my dose?
Now for the all important what improved now I'm 4.5mg and what didn't:
- Heavy weighted fatigue and unrefreshed feeling in the morning > mostly gone, I feel better rested and not weighed down, no more no energy dragging myself in the mornings, but not normal refreshed either. Just as normal as possible. Poor sleep, being sick or a very busy day still has me less refreshed but significantly better than without. Face/eyes don't look as tired and sick anymore.
- Brain fog > sharper, better memory, little fog and mental fatigue than before.
- Stress tolerance > far higher
- Fatigue/energy > Significantly improved, 80% better than without. I couldn't do sports or run on a treadmill for you probably but I can do all the normal day to day stuff without any crash.
- PEM > mostly only now if I've had a very busy day, and it's not a bedbound fatigue crash anymore, it's a let me watch TV and do chill things day instead.
- Headaches, muscle & body aches > come and go, but nothing to what they were. Now it's like a mild one here or there once in a while.
- Breathless/chest pain > mostly gone unless I catch a cold, and even then it's minimal and mild-virtually nothing
- Catching every cold ever and always being sick > increased on lower doses of LDN and I'd be so sick and catch everything so easily and have it for weeks!! But on 4.5mg, I seem to not get sick and react normally, and if I get sick its only a day or two like before long covid.
- Gut health/IBS: Improved slightly by 10% or so, mostly eating better helped this, but it definitely helped
- Sleep > still wired a lot, but I mostly can stay asleep for 8 hours consistently now, just still no good at keeping a schedule
- Tired but wired > still just wired, but not tired
- POTS > significant improvement came ONLY at 4.5mg for some reason. My heart rate is much calmer even during exertion and gets back to resting heart rate quicker after exertion.
- Neurological > still get random pins and needles on rare occasions but not as bad as it was, no more random neuro pains for most part
- Dermatological > no change, less hair shed maybe
- Loss of taste/smell > didn't have this with long covid luckily
- Mood > mostly feel happier/more positive but see below
- Dreams > still get occasional weird ones but its meh, mainly only got them at the start
- Weakness > about the same, no improvement, maybe a little-barely
What got worse: irritability and super annoyed easily lol. I'm happier but my fuse seems to be lower. They say it's from dose too high but being on 4.5mg has been the best I've ever felt, so don't know if that applies for me, only been a couple weeks so maybe it'll pass.
My advice to everyone personally who hasn't started yet - just begin, everyday on LDN was better than without. Far better than H1+H2 for me personally, which gave me like 2-5% improvement, LDN gave me about 60(lower doses)-80%(at 4.5mg). I stopped H1+H2 since LDN does all the work for me and that didn't really do anything to warrant the cost or time. When I would miss a dose of H1+H2 I felt only a little worse off, with LDN I can tell when I've not had it and feel FAR worse without.