How can i get rid of a parasitic worm infestation that no doctor will believe her listen to me in the last five and a half years i'm 51 years old and i weigh 85 lb and i can't gain weight i look like a skeleton with skin i don't want to die pleasehel?

I am sorry for your situation. Consider contacting the infectious disease department of any regional medical school or large hospital. If anyone can help it will be these people.

Unless you travelled to a poor country, you are unlikely to have worm infestation. Malabsorption is a more likely explanation. It would be prudent to consult a GI specialist. S/he could also examine your stool for parasites, Wish you good health!