Welcome to HCM!
I really appreciate the effort you are putting Priya and thank you for thinking out of box of your family.
Your cousin, laxmi Ram is having a kind of
psychotic disorder ( from what information you have provided in query) and because of that he thinks and believes that people are against him, want to kill him, and dosent trust anyone. Beacuse he is suspicious of his family members -- he dosent eat what they give him, resulting in poor food intake and weakness.
I would sincerely advice you to take him to a
psychiatrist, even if you have to fight with his family ( they will definitely realise their mistake when they will see his improvement).
From what you have described, I think his condition is deteriorating fast and he needs urgent medical attention. ( as you said he has difficulty in walking now).
You can also say to his parents that --- they can continue with all religious customs along with medicines, may be then they will agree...With medicine he will start showing improvement in few days only...
It is
psychosis and patients will not agree to go to any doctor willingly, so you might need to take him forcefully. this is well accepted as it is for his benefit only. Evevn if he dosent agree for oral medicine there are injectables which are given to such patients...
Take the right step, take him to a doctor.
Hope the reply is useful
feel free to ask more questions
Dr. Manisha Gopal