I am 8 dpo and yesterday I thought I was going to drown! What is up?

I am 8 dpo - had a positive opt on cd 17 at 10:00 a.m. and another even more positive (darker) opt at 4:30 p.m. Tested again on cd 18 around 10 a.m. and it was still positive not as positive as the one from cd 17 at 4:30 but the same at the one at 10:00. We did the bd on cd 17, 18, 19, and 20 just to be safe. Monday I was exhausted, sore bbs, nauseated at times, light cramping, dizzy, etc. Then yesterday I honestly thought I was going to drown! I was producing so much saliva that I thought I would drown. My bbs were sore and are getting bigger by the minute or so it seems, still some nausea, back aching, etc. I checked my bbt this morning at it's gone from 97.6 to 98.3, it started out before the +opt at around 97.2 then at the +opt it climbed to 97.6 and stayed until today. I am still producing enough saliva that I feel like a komodo dragon or something. I am bloated, sore bbs, dizzy at times. It's too early to take a hpt, right? I just moved so I will have to find a new doctor and it will probably take me 2-3 weeks if not longer to get in to see one. What do you guys think?