Are you asking about effects of the NHL or effects of the chemo? And, what drugs did you receive? Also, NHL covers a lot of different conditions with different effect. You will probably need to ask your doctor about this. And, there are treatments for some of the things you report.
Everyone is a bit different and the different drugs they give you cause different effects. Two years does seem a long time for side effects to hang on, so that's why I would talk to the doctor.