Hypertension and high blood pressure will most definitely cause a racing pulse.

Also drug prescriptions perhaps are reacting with each other will cause major problems.

Out of shape and overweight can cause problems and if that is the case, I love the 16 8 fast as you sleep through the majority of the fast.

Yes it is a good idea to check in with a cardiologist and see what he says.

May the good Lord intervene and help you deal with this health issue and I trust that you will get this under control as it is very treatable.