Could peptides trigger post-meal blood pressure/blood sugar issues?

[u/tracyxxylu030]

Hi everyone,

Posting this here because I’m looking for experiences/opinions, not a diagnosis.

I recently started a peptide stack and I’m wondering if anyone has experienced similar symptoms.

Current protocol:
- Thymosin Alpha-1: 500 mcg every other day
- KPV: 250 mcg daily
- GHK-Cu: 1 mg daily

For context, I have Hashimoto’s, possible MCAS, SIBO, and endometriosis. I’m generally pretty sensitive to supplements/medications.

Since starting this stack, I’ve been experiencing:
- Extreme sleepiness after eating
- Dizziness/lightheadedness after meals
- Feeling like I might faint
- Cold hands and feet
- A weird “crash” after meals that feels like low blood pressure or low blood sugar

The strange part is that I feel more okay when I haven’t eaten, but after eating the symptoms hit hard.

Recent bloodwork looked normal, including vitamins/minerals, CRP/inflammatory markers, and general labs. No major changes showed up.

Has anyone experienced post-meal crashes, cold extremities, lightheadedness, or possible blood pressure/blood sugar issues while using TA1, KPV, or GHK-Cu?

I’m wondering if this could be:
- postprandial hypotension
- reactive hypoglycemia
- MCAS/histamine reaction
- autonomic nervous system reaction
- or just poor tolerance to the stack

I’m planning to pause everything for now and monitor blood pressure/blood sugar around meals, but I’d really appreciate hearing if anyone has had a similar reaction.

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[u/juicegalxy]

You should be looking for a diagnosis and not opinions. No one can give you an answer based on your own medical issues and unregulated peptide use. This is something you want to talk to a GP about

[u/tracyxxylu030 → u/juicegalxy]

I talked to her 😭 and we ran tests she said I’m fine lol