You did it though!!!! You made it to the gym... that is a HUGE accomplishment in itself!!!! 5 minutes on any machine is 5 minutes MORE than you did the day before!!!!
Don't stop now and please, please, please don't feel dejected or bad about yourself... you still DID IT!!!!
There is no book or manual that says you have to jump on an elliptical for 20-30 minutes.... 2, 3, 4, 5 minutes is still awesome. Take baby steps and build just a little every week, if need be.
Just walk (or swim like everyone else has mentioned!) ... walking is awesome for you and gets things pumping and your body moving and won't make you feel bad!!!
You did great and should be proud that you got in the building in the first place, I know that was always the hardest thing for me.
