Tachycardia....

Went for my 36 week check up today and got good news and bad news ... good news - little girl isn't breech anymore and is head down and ready to go ! Bad news- my heart rate wouldn't go under 130 until I sat for a few minutes then it was at 12 so they sent me over to the hospital brought me up to L&D; who just sent me back down to the er where they wanted to rule out a blood clot in my lungs !!! I thought being short of breathe was normal for being 36 weeks pregnant ! But I guess not .... after having some test done and some fluid my heart rate went down to 90 and I was released and told to just take it easy and try to just drink drink drink ..... ugh talking about a stress filled day 🙄😳