I don't know

Just trying to deal with my life. I live alone by choice but sometimes I can get really lonely. I have always had a hard time making friends so for the most part I keep to myself. My health seems to be going down hill for the last few years (carpal tunnel, arthritis, shortness of breath and all around tiredness) and my depression isn't helping much either. I know other people my age who seem to have much more energy and drive than I do, so what is wrong with me? My doctor says I'm fine with the exception of the carpal tunnel and arthritis. I have had surgery for the carpal tunnel that just made it worse. Now I seem to be whining alot, I suppose I just need to suck it up and get on with it.