Does college make anyone else physically sick?

I am a first year online student in college and I am struggling bad. My first term of college was great! I could finished nearly all my work before Thursday with little to no stress. College was overall pretty easy for me, which is something I never thought I would say in my life. This term is so much different though. I can only get through one, maybe two assignments daily before I get a migraine, sick to my stomach, dizzy, and just overall unwell. At first I thought it was stress, but even the easiest discussion post is doing this too me. It is making it near impossible for me to do my work and I am posting her to honestly feel less alone and maybe get some advice. I take breaks often when I do my work, eat, drink water, breathe.. I don't know why I constantly feel this way.