I have just started taking metformin at 500mg. For the past 3 days I have been experiencing tingling/burning sensation in my feet, hands but mostly my legs (one more so than the other). Is this a side affect of metformin? Or starting a new medication in general? Has anyone experienced this? I dont want to go back to my doctor after only just seeing her and starting metformin (I feel I am being over dramatic if I do that) but googling symptoms is coming up with alsorts from nerve damage to blood clots