Try having autism. Everyone thinks you're a jerk when you're just trying to be normal.
Try having PTSD. People think you're being aggro and have no clue how to calm you down.
Try having a bum leg. You can walk, so people think you're fine, but don't realise how painful it is to walk for long periods or stand, let alone cycle.
Try having thyroid issues. You run out of energy for no god damn reason, or suddenly get energy with no idea whence it came.
This is my entire existence.