its not like it keeps you from doing other things either
Depends. Something like mowing the lawn only lays me up barely able to move for 3 days or so. But then, I use a riding lawn mower, no way could I push mow over an acre. What I am capable of doing is often determined by how much pain and fatigue I am willing to tolerate or able to tolerate when I have done it.
Mowing the lawn-- 2 to 3 days of pain and fatique
resetting fence posts and putting in concrete for them, max 3 post per day--3 to 5 days recovery
Going to a mall, Walmart or anyplace with fluorescent lighting for as little as 15 to 30 min-- 1-3 days extreme headaches, dizziness, nausea, pain and fatique
Laying under a car to do repairs for an hour-- 1 to 2 days of nausea and dizziness.
Driving at night for too long, say 20-30 min-- 1 to 2 days of headaches, dizziness, nausea
Work at my computer for more than around 30 min at a time-- again 1-2 days (this is why I often appear to disappear sometimes during conversations and am slow to reply and of course, some just move to fast so I never actually get back into them)
Just a few examples. Sure, If I am willing to pay the price, I can do a lot of things, for a little while. Could I hold any type of job, none that I have found so far.