Please help super confused!

Long story sorry! So I can't tell if I've had a really irregular cycle or if I could be pregnant. A normal cycle for me is 32 days My last period was Oct 1st- 10th. It was heavy and pretty typical period for me. Then on Oct 21st- 29th I had light spotting. November I didn't have a period at all or any spotting and so far none yet Dec. Also about two weeks ago I had a very faint positive on a dollar store test. I made a doctors appointment and got a blood test which came back negative (well at least I'm assuming its negative cause all she said is everything is fine). I'm having strong symptoms of nausea and vomiting, headaches, backaches, and urinating frequently. I'm generally a healthy person and not on any medications. Any insights to what could be going on. Any help is greatly appreciated ladies