I have been sweating excessively when exerting myself, even just slightly. I also have been getting headaches and just this week my EKG was a lot different than my previous 3 month EKG. I don't know whether it is related. I am going to have a PET test to check out my heart.
I have just started taking Welchol in the past week, and have also noticed that I start to break out in a sweat and get the headaches, along with severe dizziness within the first few minutes after taking it.
Except for the headache, the other two side effects I experience, only last for maybe half an hour.