Could the heart-rate jump have come from taking more than your system was ready for?
Took my first 2 mg shot on the third and dropped from 229 to 220.3 lbs in six days. Appetite vanished completely. After the first lower-right stomach pin I napped and woke with a heart rate around 100, felt awful, was cold, mouth bone-dry, and the skin on my triceps hurt at the slightest touch; that faded after two or three days. I moved the next shot to the lower left side and noticed hunger returning, so I switched to every six days. Face looks less puffy already. Planning weekly updates and photos once I hit 170.