A diversion is a good thing. I have had serious Arthritis and Crohn's disease for some time. Attitude has been my strongest medicine.
I have been volunteering outside the home. It takes my mind off my pain and it has widened by circle of friends. As old friends move away or die, new friends enter the picture. A person with friends is a much happier person.
This forum (DU) and the internet in general has been great. It has given me so much.
When I first started Folding@Home I was obsessed with my progress. I soon found that it was a good divergence, it took me outside of myself. It made me feel good that I was fighting the good fight. It gave me a reason to get up, fire up my computer.
Over the years the obsession has passed, but I still feel good about the little bit I do for my fellow man. I know if and when the data collected from the Folding@Home project finds a cure for many diseases it will probably be too late for me, but that is not the point. The point is doing something for someone else. Sure letting a client run in the background isn't much, but it is something. If you are homebound, your options to help are limited.
There are many distributed computing projects out there. Each one is a worthy endeavor, and each one you can do on your computer. It won't put you in the league of Mother Teresa, but you do what you can.
Check these out:
http://boinc.berkeley.edu/ This one gives you a range of projects. I was with the Weather Prediction net before I settled on Folding@Home. I did Seti@home for a bit, but decided my time was better spent with something more down to earth.
DU has a team for Folding@Home. Here's a link to the discussion.
http://www.democraticunderground.com/discuss/duboard.php?az=view_all&address=364x1523134You can get active in Amnesty International.
http://www.amnesty.org/ Or find something locally you can do to help others.
The point I am making is: get up, get out, and do something. Don't let the illness control your life. Get involved.