Yes. I to was told to gain weight before my insurance would approve me and I listen to my doctor but I wish I posted this problem on this forum because once I started to gain some weight back it was hard for me to go and try to lose what I just gain so I would highly suggest that you take the advice of the others and just put paper weight of a roll of quaters in your pocket, plus you worked so hard to lose the weight why would you want to try to gain it back.
Have a good day