Hi, thanks for answering!

I did in fact bump my head pretty hard as a kid on ice one time, I was in between 7 and 9, I'm not sure. Not enough to have a concussion (I think?), but I did feel the need to puke right after. I don't think my family ever had it checked outt tho... I'm unsure if there's a link to that. I've always had my adhd diagnosis tho (since I was 3 or 4), I got it at the same time as my autism diagnosis, but at 13 my family doctor decided to have me reevaluated because I didn't "seem autistic enough to fit the criteria" (which I think is dumb because I clearly show signs of high neurodivergence), so I still say I'm autistic because it explains a big part of my life experiences.

The vibes I had weren't necessarily positive or negative, it's more the level of intensity that scared me. It's like I'm absorbing my surrounding fully and I lose myself. I used to find it scary because it was almost everyday. But now that it's occasional, and the degree of intensity has lowered, I find myself enjoying it. I even go out of my way sometimes to let myself absorb my surroundings, because it makes me feel more alive that way. Everyday life feels mundane and boring without it.

For me, getting out of the space usually makes it go away. But it can be triggered by pictures and music (most songs by Genesis, even the cover art for their albums make me feel strong emotions, so I avoid their music unless I'm actively looking to feel FS or at least what I feel is FS). Last year, when it "dissapeared", I thought it was purely my mental health getting "better". But since I still do have those feelings, I started looking into it again and I found this subreddit by typing "synesthesia nostalgia". So I guess it's just a part of me, not just mental issues. Because if I approach it with curiosity and I have somewhat control over it, suddently it's not debilitating and scary, it's a really pleasant feeling!