42 years old 230 lbs 28% body fat. First ever cycle prop, about 4th week in 125 twice week, nolva 10mg daily. Felt good however now feels like my heart is racing hard to sleep pulse however not high is this normal? Is this cycle too much first time for 10 weeks? Not really sure of pct any suggestions would be great. Really enjoy the pushing myself at the gym,only wish I could have got this rush twenty years ago. Thanks for the help