Pregnant/Miscarriage/Crazy? Help.

On August 22 I was so sure my husband and I conceived. A few days later I had spotting (new for me) a week later my period came 2 days early and was very light, only 2 days of spotting (new). Then Ima week later I threw up (new) at 2pm. Then for the next 3 weeks I'd get extremely fatigued and naseus at that time. My breasts were/are darker and tender. I noticed huge spikes in hormones. I was peeing constantly. I was sure I was pregnant but didn't want to test at home. Went to see a doc who did blood-negative. So was like okay-but just had a feeling I was pregnant. About a week later I started my cycle. My Norma cycle is 2 heavy, 1 medium, 1 light. 4 days. This cycle was 4 heavy day, 1 medium, 1 light. So I thought I must've had a miscarriage. Even after the bleeding stopped I was cramping and hurting so bad. So I went to OBGYN. She said it could be miscarriage-I could still be pregnant, it could be thyroid or it could be an autoimmune 😳. Well last night I ended up vomiting. So I got a cheap red dye test and took it this morning. Negative. Can anyone just help me make sense of any of this? Disappointed but not TTC. Just wanting help.