FRUSTRATED
because you were told to go walking and you'll feel better but you're just feeling worse
OVERWELMED
because you can't find the solution, you're told to just keep trying, and the pain and fatigue are wearing you out to the point of quitting

EMBARRASSED
because you don't want to complain about something that should be so simple
DISAPPOINTED
because you had big goals to be healthy, lose the weight, get active....and it feels like you're falling short