Hang in there, MacPloos.
Look up on youtube.com some very light exercises you can do sitting in a chair so you can get some circulation and maybe loosen some of the tightness from sitting.
Or ask the nurse to get you a physical therapist next time she comes round.
I know you're not in a wheel chair, but this is relatively safe stuff to get some movement in. He also has several related videos there on the same topic you could also check out.
There are lots of others where you work with a chair you can do a search for as well.
But be safe with it, shipmate.
https://www.youtube.com/watch?v=g_Y3Ea9HQC8
Go man go!!!!!!!!!!!!!!!!!