I'm driving myself crazy with paranoia. Can anyone help me narrow down what sickness my cat may have?

For 4 months I've been noticing physical and mental changes in my cat. I've been watching her closely in hopes of treating ASAP to avoid pain and suffering. My cat is about 10 months now and is black all over. I started to notice changes in the color of eyelids, nose and lips as they seem to be chapped or lightening. I let her out often and prefer it that way and she gets into many situations while frolicking in the bushes, ingesting objects she vomits up, getting stung by bees, chasing ducks and falling in the river, climbing up trees chasing squirrels, etc. I recently met my neighbor who is both physically and mentally ill and has confided in me with her symptoms, beliefs, and theories as to what may or may not be "killing her". After 3 weeks of knowing her I found myself more concerned with her constant tales of conspiracies and suspicions of being tormented by parasites she says are invading her body and her home. She's warned me to beware and keep a close eye out for the craziest things and found her very interesting with paranoid behaviors and delusions. She claims to have the last stages of Morgellons Disease and does not look well. She's abusing pain meds and claims her joints, muscles, and bones ache to extremes as a result. She believes that our apartment complex may also be infested with larvae, worms, and bugs and has exact names for them. She thinks they're in the carpets as silverfish and whiteworms. She claims my cat could be the main transporter of worms and parasites associated with Morgellons Disease. She's shaved her head and eyebrows, inspects fabrics, my hair, eyebrows, kitchen, carpets; SHE'S DRIVEN ME CRAZY. She recently got diagnosed with infection of ringworm in her scalp and has been all over my apartment with it. Now I'm paranoid. I clean constantly, shower, shave, inspect, and now I'm driving my cat crazy. I've researched online about the disease, ringworm, tapeworm, whiteworm, silverfish, roundworm. I constantly search for signs and symptoms and actually find some in areas of the kitchen both black and white. I've thoroughly inspected my cat and her feces constantly and notice that all the symptoms are all similar. Her hair gets greasy quickly and looks cloudy, she's been to the vet spayed and vaccinated and examined for constant diarrhea where I was assured she was not ill. She licks her but constantly and eats and drinks a lot remaining small and slender. Bowel movements are constant ongoing 24 hours with signs of blood, white specks, grass, and what I believed to be a tapeworm. I was not able to get it to the vet for testing right away due to lack of funds and had to dump the samples. I see no worms around her anus, and follow her waiting for something to jump out of her anus. She sleeps longer and heavier and no longer cuddles. Patches of hair are thinning here and there but she plays and meows with energy. It may be anemia, lukemia, feline HIV, a cold, hypothyroidism, chrones disease and the list goes on! I can't afford a complete physical. The vet asks for symptoms and I'm all over the map. My cats really starting to get violently irritated about my recent unnatural obsession of following her with a flashlight and a magnifying glass.