Glass entered in my foot and still its moving on my body.

Patient: A piece of tiny glass has entered in my foot and its been a 18 years. I have been to hospital and checked with many doctor bu unable to get it out. Today i am suffering from Liver disease and some cholestrol problem i mean i have high cholestrol. My heart ache sometime, i am still feeling that i have it inside but no doctor would like to listen it..They made joke out of me. I am on a diet and even do exercise but unable to get rid of it..How can i come out of this situation please help.Kind Regards,Barun BhandariNepal