What could this white balls/bubble looking substance be in my feces?

A little background: I've always had unusual health issues. I have Ehlers Danlos Syndrome (Basically a contortionist) so my body is extremely different. I mention this because my body reacts to things differently and is very... odd! A lot of issues tend to go unnoticed. I also have Fibromyalgia. I don't know if Lyrica could cause this or not. I normally have a bowel movement between 3-7 days and sometimes more than a week. It's been like that since I can remember, except for when I take my Adderall XR or drank. I don't drink anymore but when I did, the next day I'd have a bowel movement.

I noticed maybe a year ago? I had white stuff in my feces. They looked like bubbles and I dismissed it as just in my head. I got curious after a while and noticed they're more like little balls the size of pin heads, or maybe very small/short stringy things. I didn't take that close of a look, and I always forget when I got to the doctor on top of not trusting them. I've had too many bad experiences, and therefore I prefer to know as much about what I may have before being consulting a dr.

Other, possibly related info: I used to eat steaks medium/rare. I don't drink much water, doesn't quench my thirst and it makes me pee constantly... one glass of water makes me go every 10 minutes after. I also have very fast metabolism and don't gain nor lose weight. Always been like that and my parents were when they were younger. I've also had cats as pets my whole life, my girlfriend's cats currently have worms... gave them worm meds 3 different times!

Also, I was given antibiotics, I think it was Amoxicillin, for a sinus infection for a 10 days. Since then, I've been able to actually breath through my nose for the first time since I was a kid (around 20 years and I'm 26 now). Since being on the antibiotics, I noticed I had bowel movements more frequently for about a month or two after. Didn't notice any of the white substance in my bowels either. Hence why I'm currently questioning if it's a parasite of some sort. Or I could have just been busy and didn't notice.

I don't experience diarrhea, cramps, or anything of the sort. With so much going on with my body: joint dislocations, joint/muscle pain, etc... Hard to tell anyhow. I did have this weird rash for years that went away while on the antibiotics. Or it was a rough thick/flaky spot on my ankle. My skin is stretchy but that area was as if I had normal skin, except for thick/flaky/rough and hurt if I pulled on it. Dermatologist simply said it was dry skin. Came about when I ate a lot of clementines (I'm allergic to oranges/clementines but love them...) Yep... my body is odd, and normally has a lot going on. Even allergic to Aloe Vera for some reason.

So could it be a parasite? Undigested food? Something to do with my medication? Normal? Or something else?

Sorry if this is a bit scattered, I'm not totally awake just yet.