Is this normal? I feel spaced out!

Hey all, seasoned meth user here. I know a fair bit about it all but I am stumped on this one, never felt this before. I had 1.5 dots to 20 lines, it grew to 30. I injected it and before I even got it all in I got sucker punched in the face, literally that’s the rattled feeling I got. This was followed by hot flushes all the way around my body. I spent half an hour feeling amped up but spaced out, then I got a cold rush for a few minutes, now the hot feeling is back and I feel spaced out and still peaking. Is this cut with fent or something? I haven’t experienced such an opposite reaction to what I am used to. I have never been rattled like that before either and I was once a daily user for a few years, been 3 months back on it after 3 years off, I have been going through half grams every night and the stuff has always been very clean, seems something has changed and I can’t pinpoint what.