I tried MDMA for the first time

I took a 100 mg dose, and felt nothing after a few hours

Took a much larger dose, and it got a little weird. I experienced mild halucinations. My walls looked somewhat like a static TV. I saw a faint silhouette of a Man.

I did not feel euphoria. I didn't feel scared nessecaraily, but it honestly was kinda freaky. I remember my pupils in the mirror were huge

Have not been on SSRIs for a while. Like 2 months.

Im told things like autism and ADHD can really impact the experience. Im not diagnosed, but I've suspected for a while i might have a mild case of these. (Although I'm not gonna self diagnose)

I bought it from what i consider to be a reputable source, but you never really know

Any other ideas to explain this?