The account which I am going to narrate, was experienced by my uncle. 8 years have passed since these events.
My uncle owns a clothing shop. And travels Amravati which is city in Maharashtra, from there he purchases all required commodities for the shop. He was on his way back and it was 1am, and all of sudden he had an urge to pee. He asked the driver to stop on a nearby highway at some deserted place. As per his description no single entity was seen or heard by him in that deserted area, no hooting of owl. No nests not, even perching of birds on the branches, just a sheer amount of silence. Deep down his inner self told him that I should not be here this definitely is someone else domicile, who don't anticipate me to be here. He completed his business and went in to the car. And asked driver to turn off the AC as he was feeling gushing cold and chills, so he just covered himself with a blanket and slept in the car.
Then the strange occurrences began.
He use to eat nights dinner and that's it only one single meal for entire day. And even if he felt hungry for breakfast or lunch he used to vomit. He use to ask for murmure (puffed rice) and use to devour it like there's no tomorrow.
He turned insomniac. He tried to sleep, but the woman with jingling anklets used to come in his dreams; for months he wasn't able to sleep and was totally emaciated.
My uncle shared this with my grandfather, who took my uncle to the baba in a nearby village. That baba gave him some ash to eat, as soon he took that ash into his mouth he expelled some black gunk, that pooled all over the floor. Thus he was ridden from thing for forever.
And one more thing like my grandparents and even my great grand parents were victims of the occult stuff, maybe I will share their experiences some other day hope those stories get submitted
It sound like your uncle came into contact with some sort of entity that attached itself to him.
All that matters is that he expelled the black gunk whatever it was before it made him really sick