Hi Cammiejo, and welcome to the forum.
How old are you? Are you still living at home?
Sometimes other family members don't understand what we go thru on a daily basis and think they are helping us by saying certain things.
Most of us here have weight problems, some Can't gain due to illness, others, like myself, gain because of Prednisone or other meds. But, what you weigh is not the person you are in your heart, which is what is the important part.
You say you have medical problems and you're on meds. If you are depressed, are you seeing a counselor or talking with your doctor? That can help not only how you feel about yourself but, also help you deal with others who don't understand.
There is help for you and I hope you will seek it out. Let us know how you are doing. It will be ok.. !
Don't forget.. Drink your water.. :)