It does suck in the beginning, but it will pass. I can hardly recall all of the difficulties without stopping and thinking hard.
The worst, IMO, is the mental pain. It didn't take much pain in my butt to cause my mind to start whirling with what if... and could it be... questions.
You have been moved out of your normal routine and having to adjust, and that is hard. The one thing I remember thinking through all of this I'll share with you. . .
You can swim against the river or with it. . .you end up in the same place. Why arrive exhausted?
Hang in there! It gets better!