I have always been a big exercise fanatic,(okay, Narcissist, lol) but after I got muscle aches, from my first 2 Interferon shots, I stopped riding my bike, in
fear of developing muscle cramps in my legs.
After the sx of the Inf shot went away, I developed hemolytic anemia, around my 7th week of Tx, and felt too clumsy and dizzy (breathless and lead legs) to ride my bike. But thru-out Tx I did take my dog on two 20 minute walks per day, and did continue to go out of the house everyday.