I have handicap and cronic pain after a burn/falltrauma, i have very little capacity to fysical activities..just be up. how make partner understand?

Counseling?: Many families experience significant transitions following any trauma, especially one with long-lasting physical effects. Communication is very important, and a counselor (lcsw, psychologist, psychiatrist, etc) can serve as a neutral facilitator to help each party express feelings without the loaded situations that often arise in the moment. Get help, this is difficult to do alone.

Counseling: You may try couples counseling to help communicate difficult topics. Some find that it is easier when there is a knowledgable and neutral authority present so this can be done in your doctor's office as well.

Pain: It is very hard to make your partner empathise with the pain or disability you have. I guess you could hit him over the head with a friing plan.