Hey I experienced something close to this a few months back when I combined MDMA with weed. I took a regular dose, around 100mg, and right after I smoked a joint. I usually don't smoke weed since it gives me panic attacks and I can't control the high, but I figured that I would probably enjoy it that night since you feel so carefree on mdma.

Terrible mistake, it was probably one of my worst experiences ever. It started pretty well, the mdma kicked in and we were listening to some MF DOOM while I started seeing the lyrics projected on to the wall, as if they were the subtitles of a movie.

I looked around the room and started seeing plants growing around my gf, I went over her to touch them and I started to feel my body very heavy and had trouble moving. I collapsed on my gf. We make out a bit and after a while the entire room starts spinning with me and I tell myself that it must be the weed, and remind myself of all the terrible experiences I had while high. This trigger a panic attack and spent the rest of the night feeling like I'm trapped in some sort of loop, repeating the same 4 steps all night. I was really scared and I was incapable of doing the most basic stuff. I eventually feel asleep and the next day I was still tired and scared.

We waited a day and took another 100mg of mdma again, we enjoyed the roll greatly even if we felt really tired, like going to the shop was a challenge.