I havn't been feeling well lately not sure what I have.

Hi, I am a eighteen years old. I am female. Lately I have been feeling fatigue, flushed in the face, dizzy, loss of appetite, weight loss, feeling of vomiting, light headed like I would pass out, stomach aches, chills/sweats, and brusing on my legs. Its not the flu because I havn't actually thrown up.

 I did have a sinus infection about three weeks ago and I was put on Biaxtion (sp?) then I was put on Amox because the biaxtion gave me stomach pains. But now I have been experiecing the brusing where as I know the Amox doesn't show signs of brusing as a side affect. 

If you have any advice that would be great.