Complex sentence: As a result of the afformentioned car crash in 2003 she added another 420lbs of weight to her then massive 560lb frame, she was bed ridden and ate superhuman amounts of food.
Split into simpler sentences: As a result of the afformentioned car crash in 2003 she added another 420lbs of weight to her then massive 560lb frame. She was bed ridden and ate superhuman amounts of food.