Hi. So being a hypochondriac i regularly check my pulse. I found out that when I check my pulse right after waking up its around 70. But after i have my regular 4 glasses of water and a trip to the bathroom and a ten minute rest in bed again my pulse drops down to around 56 . Please tell me is this normal? And If it is then I am really confused about which heart rate to take as my resting heart rate. Thank you.