Hi, My endocrinologist put me on metformin for my PCOS (to start 500 mg with food, in the morning and in the evening). I started 3 days ago and took altogether 500 mg doses. 1st day - I was fine 2nd day - I started feeling tired (but it so happens that there's a lot of work to be done and I haven't slept well) 3rd day (yesterday) - I took my morning dose and around lunch time I noticed that I'm not hungry at all. I felt tired but I didn't sleep well and i worked all morning. Sometime in the afternoon I started feeling a bit nauseous but it went away after a nap. We went to dinner at our friends' house. I ate a lot of food I normally do not eat (foie gras, creamy desert...). Early in the night I started feeling more and more nauseous and I threw up. I felt week, as I always do when I throw up. This morning I feel tired and a bit weak and I plan to stay in bed. My appetite is back. The symptomrs I mentioned could be common metformin side-effects but also they can point to lactic acidosis. Could lactic acidosis be caused by only 5 low doses of metformin? I have no kidney, liver, lung or heart problems. Thank you!
.p.s. my mother-in-law also had a bad reaction to the dinner we had last night - diarrhea