Help please!

I seriously haven't been feeling good for about almost a month. I've checked if I'm pregnant because I haven't had my period. I did have a some time of bleeding but it wasn't the same like my regular period. I have chills, feeling really hot (but not a fever I have been checking), headaches, nausea (I get this weird taste in my mouth), sometimes I get dizzy like a want to faint, I loss weight but I feel like I gained so much, I mean the list goes on. I already went to the doctors and they said my fine. What should I do?