Please help

NaNa

I have a question about dizziness now I have been having this craaaaazy dizziness for the past 6 or 7 weeks.. Everytime I lay down or get up or even if I'm sitting down or standing, I went to my doc on Saturday and did blood work still waiting on results lastonth got my period doc thinks could b pregnancy and told me it's completely normal to be pregnant and have a period they gave me a medicine to stop the dizziness temporary but couldn't even continue taking it I only took half pill it did help with nausea and dizziness but I turned into a zombie just wanted to sleep all the time I work full time and go to school. did anyone experience anything like vertigo and ended up being pregnant.. the funny thing is I took pregnancy tests and some were faint positive and then turned into negatives and ended up withy period still doctors believe it could be pregnancy... anyone experienced this before