Will, my son gained about 30 pounds while on 3 x BEP. I think a lot has to do with the steroids they give you. Also, along with drinking lots of water/fluids, you are probably reaching for comfort foods because you think they might make you feel better. My son's last chemo treatment was on the 29th of January. He was married on the 28th of May. He had his hair back and had lost the weight. Wait until you are done with the chemo before you start your diet program. Do not do anything to jeopardize your immune system. The biggest problem he had at the gym was running on the treadmill. He had neuropathy in his feet, and the balls of his feet just killed him. So don't be surprised if that happens to you. It lasted about four months. He was married in 2005 and has a beautiful little girl who will be two in October. Just hang in there and look to the future.
Spouse: I/O 8/80; embryonal, seminoma, teratoma; RPLND 9/80 - no reoccurrence - HRT 8/80; bladder cancer 11/97; reoccurrence: 4X
Son: I/O 11/04; embryonal, teratoma; VI; 3XBEP; relapse 5/08; RPLND 6/18/08 - path: mature teratoma