I am 33 weeks pregnant and feel really poorly what should I do?

Ok, i woke up this morning to extreme cramping in my legs an hardly being able to walk as the muscles down the back of my whole body are so painful and have got so much worse through the day, also ive been developing a temperarure and a cold, Ive been in so much pain its drove me to tears but cant even get myself up to go doctors, and wondering if its even worth it as im already on anti biotics (which i didnt start taking till after i startes getting the syptoms) im on amoxacilin which is perscribed for internal piles (sorry if tmi) what should i do? will my baby be ok? not felt him move much today