Sounds like you got some very sweet shit there bro! I don't think I've ever see TA dosed above 100mg/ml, so I'm not sure if it's "overdosed". Perhaps it's a combination of the tren and whatever else you are taking? If I recall correctly, you were running 1gr+ of test along with a few other things. Correct me if I'm wrong.
In my case, if the sides are too harsh, I just drop the dose until I find my sweet spot. That's the biggest plus with tren a compared to tren enan, you can adjust it on the fly and deal with the sides for a day or two. With enan, you have to deal with the sides until the shit has left your system, and that can be a couple weeks.
I'd do what you suggested, drop it down to 50mg EOD...perhaps 75mg, if 75mg is still too much, go 50mg EOD. Good luck bro!