I agree 100% with Paul! I had the same issue with balance as well as an ocular motor problem that developed 6 months post GK. My issues lasted roughly the first year and the discomfort was similar to what Paul describes - a mild nausea. Eating helped! I gained 12 lbs. a year after treatment. It really had nothing to do with the radiation, it was just how I handled the symptoms that developed post treatment. Eating did take away the nausea and helped with the wonky head. Compounding the issue was that both the ocular motor issue and the balance problems made exercise difficult, so everything slowed down including burning the calories.
Like Paul, I'm now almost 3 years post treatment and feeling great. Nausea, wonky head, balance and ocular motor issues almost completely gone. The 12 extra lbs., well they're still hanging around and will be the next thing I plan to take care of.
Cathie