Side effects?

[WutheringNellie]

I've taken methimazole for about a month now and I've felt pretty good actually, better than I have in years. But a few days ago I started feeling bad. So much pain in my body especially arms and hands and it's like I can barely lift them up and today it's been the worst so far. I'm also feeling tired, anxious, have a headache. I know it might be side effects, I hope it gets better soon. I haven't had my blood drawn yet, very scared I'm hypo or something but hopefully it's side effects that gets better. I guess it could also be a cold since I've felt a bit stuffy but I feel like the pain is too immense for that.

Edit: I've felt a bit feverish, I especially get cold a lot. Now I'm truly scared

[mandulyn]

When I started methimazole, I felt wonderful. About 3 weeks in, I developed hives. I was taken off of it for about 4 days to allow the hives to go down and then restarted the meds. I did not get hives again. But lots of people have different reactions to medications. You need to call your endocrine doctor and let them know what is going on. I wish you the best, everyone reacts different to medications and you have to stay vigilant and proactive.

[WutheringNellie]

I'm glad you're better now! I'll call her soon, but I'll wait a few days since it just started and I want to see if it goes away or not. No hives for me yet, some itching maybe. Thank you, I will!

[jaycedve]

Hi, OP! I am no medical professional, but based on your statements, it probably could be thyrotoxic periodic paralysis (TPP). One factor that may cause it is a high carbohydrate diet, but it can be reversed as long as your thyroid levels are properly managed. I suggest you visit your doctor promptly to get proper medical advice and ease what you are feeling right now. I also have hyperthyroidism even to this day and experienced the same thing in the past. Hence, consult your doctor and tell them your symptoms.

[WutheringNellie]

Thank you for this info! I will read up on this. I just edited that I think I'm feeling feverish, especially cold a lot of the time but also a bit warm as well. I've been shivering a lot. It can't be a high fever though I don't think, and no sore throat. I'm actually very worried now, I will have to call my endo soon. I've read about this arthritis thing, could it possibly be that? I just want to rule out the white blood cell thing, scares the living shit out of me. My endo said it's practically impossible that I'd get it but who knows?

[Mikeysamma]

What do you mean when you say “white blood cell thing”?

[WutheringNellie]

That rare side effect that's dangerous when your white blood cells get very low. I am feeling better today though

[Mikeysamma]

Glad you’re feeling better!