Sick after a couple days of c section

So after the first couple days of my I feel sick.It's been 3 weeks now.the first couple days I felt great except for extreme pain but I could eat and not feel sick.Now that it's been 3 weeks I've been sick for about 2 weeks and I can barely eat everything.I've been to 3 different doctors and all of them act like I'm crazy.they have put me on two rounds of antibiotics and it doesn't help.They just assume I have a uti because there is white blood cells in my urine.I'm waiting for results because they have sent it out again. I have cramping while peeing that makes me wanna scream and I feel extremely faint and every time I eat I dry heave and I almost have no appetite.They just say I feel bad just because I've had a baby or a urinary tract infection.It's really getting old I wish I felt good and could do everything normally.