Sounds fine and normal.
Your temps are not that bad. 75 is actually fine with a proper hotspot. 100 is a bit much and you need to find a way to keep that from happening again.
With no signs of RI the behavior you described sound snakelike to me. My BRB will soak in his corner bowl with his head and about six inches standing straight up in the corner.
I think you need to relax and work on getting the cage right and regular.