I'm making myself sick?

Lovely • IG: Plentifully.day TTC #4. Sept 2014 tubal reversal. Feb 2016 HSG: blocked tubes. May 2016 IVF: failed. Aug 2016 BFP turned to 4th loss
I've had constant heartburn, nausea, dizziness, headaches for days. Im 11dpo, I test and keep getting bfn I'm thinking it's me? Maybe I've got something else wrong, anyone have these symptoms and found out it was something wrong(sickness)?