Parasites?

I’m really worried about my 3 year old male hedgehog. About a week ago I noticed that he had stopped eating and after two days of him not eating, he stopped running around and acted lethargic too. I took him out of his cage and he was super cold so I warmed him up with my hands and turned on his heating pad. He tried to hibernate last year so I assumed that was what was happening again. That night he didn’t eat again but he still drank. It’s been a week now and his eyes are fully open and he looks better besides the fact that he’s skinny and can’t move his back legs and wobbles. I got him to eat live meal worms a couple days ago but he won’t eat his pellets. I also found a weird looking bug of some sort in his cage and I’m worried he’s suffering from some type of intestinal parasite. This all happened so fast and I don’t have much money to take him to the vet so I just wanted to know if anyone has dealt with the same thing or knows what this is. I’m just scared to lose him.