Code error causing me to lose Arduino (Micro) boards (when uploading code)

Ok I just bought a new board at Radio Shack. If possible, could someone please help me modify my error free code (the working display/temp sensor code at top of page)??

I am attempting to add a BPM value to the 16x2 display. It currently shows the temperature on display without any issues. As soon as i try to add the pulse code (surrounded by stars ***) it goes crazy. Display goes crazy and board stops communicating with PC.

Thanks again for reading my post!