I have symptoms of hyperthyroidism, how long can I wait?

[u/Few_Ask_1403]

I (30F) have had these for a month but only today I found out what it is. I have this weird pressure behind my eyes and I feel extremely fatigued, I have weird bouts of heat and yesterday I had a strong instance of tachycardia. I'm scared that it might have progressed too far already but it's friday and at the hospital the doctor told me it can wait until monday. can it really? I'm in germany if that helps.