No, this is NOT normal unless you have an infection or in rejection. I know u posted this last Oct, but I gained 35 pounds 11 yrs post-transplant in my trunk and thighs. Been in hosp four times. They say nothing is wrong they can find. Said I have "lymphedema" which is a symptom not a diagnosis. What is causing the swelling? No one can tell me and I am suffering terribly like you. I am house and bed-bound now because of it. My kidney transplant is fine so this has the doctors and ME VERY FRUSTRATED. This has been my life for the last five months with no solution in sight. All I worry about is the long term effects of all this fluid on my transplant, heart, and lungs.
PLEASE, have you gotten an answer? I hope so for your sake and also mine. I hope you are healthy now and happy. I can tell you anything about the transplant experience in General, but your issue is my constant issue too. Let me know, ok, Sherri, as I would like to know how you're doing.
Lorry...11 yr renal transplant recipient from my husband. <3

That's a whole lot of extra wieght after transplant, the wieght could just be fluid wieght another possibility you've been given High doses of a steroid making your body retain fluid the higher the dose the more the body will retain.
Our you on any water pills to help rid of the extra fluid? If you are be Sure to have a banana or an orange something high in potassium water pills makes the body rid of potassium frequently keep it monitoring your lab results a drug was prescribed to help my body rid of additional fluid the only problem I would urinate through out the entire night which was becoming a problem, regardless the transplanted kidney was working great dispite the few hour's of sleep I was actually getting, continue to elevate your legs and get second may even a third opinion .  Hope this helps!