I Have OCD Of The Talus. Doctor Had To Cut

I Have OCD of the talus. Doctor had to cut my bone in the at the ankle in order to drill the talus. I had a cast for one week, and now it's just wrapped, no weight bearing for 6 weeks. I'm using crutches at work and I keep it elevated at my desk. Is it normal to feel sick as much as I do? It's been 3 weeks. 3 more non weight bearing.