I had my thyroid shut down after a post op MRSA infection, I lived with it without realizing it for three years and lost weight. Now that I'm being treated, I heal just as fast as everyone else, have an appetite, and can stay awake for more than 12 hours. The last time I fell down, I hit my ribs first (and bounced). The only time I look overweight (shirtless, I'm too cheap to get extra extra tall shirts that have enough room in the shoulders) is when my IBS (MRSA drugs beat the hell out of your gut, permanently if you have to be on them for two years) acts up (which is rarely unless a bar screws up and mixes me a drink with cheap spiced rum)