High heart rate induction @ 37

Anyone else go through this? This is my 4th pregnancy and everytime I get to this point (34+4) my heart rate gets out of whack and I have heart palpitations because I have tachycardia. When I sit it goes down but when I get up to do something I'm dizzy and can't breathe and my chest feels like it's going to explode mind you I'm always home and my boyfriend works and we share a car so I'm not doing much. This happened with my last baby and I had him at exactly 37 weeks due to it as well because they were afraid it could soon cause issues with him. The last 3 times I've went my heart rate has been in the 150s+ They mentioned to me to that they'll probably induce me in the next 2 weeks if I go back at my 36+4 appt and it's up again. I'm nervous.