thanks again guys, the outside opinions really did help and while i'll still try and fix it, it's good knowing that it can't be too serious (just me way overthinking it like anyone who reads a medical textbook and applies the symptoms to themselves), and the top gun stuff was hilarious
It's hard to notice muscle imbalance if your body isn't in a symmetrical position: one arm at your side and the other holding the phone simply makes it impossible to see if there's an imbalance.
that is one issue I had yes, but you can't really do anything unless you have a tripod. If i held it out in front of me with both arms hanging down then my deltoids would be pulled forward slightly and cause it to deviate, and when i broke it down and figured it out this ended up working the best. the trapezius is a little bit extra lengthened due to the arm being out slightly to the side and the positioning of the deltoid, but it's the best position i could come up with and was far better than any of the other options (again plus the fact that the deviation is just a little bit more exaggerated so the fact that no one noticed anything serious shows it's even less significant).
i do see your point though but the problem is everything moves so much and is so fickle with body mechanics that you can't do much and as i said above, that position is fairly natural and if anything just exaggerates the imbalance so the lack of any noticing makes an even stronger point for it not being an issue. if it were hiding it or something else or screwing up the potential to detect it i definitely would've found something else.
either way i hate muscle imbalances; i don't care about ones in the biceps or triceps because that's just natural and as long as it's not insane (which mine aren't) it won't affect anything in terms of functionality. with the upper trapezius though? oh man, having a huge imbalance in that really can fuck your shit up and since it's so often involved in actions (even with perfect form) that you really don't want it messed up. only thing that could be worse would be an oblique imbalance as that would fuck your spine the hell up. I lift for the challenge, the endorphins and getting stress out, but it is quite interesting to fuck around with trying new exercises for my clients, set new goals for me to see how realistic any sort of change is, and analyze my physiology when I can to see first hand how to identify and treat muscle imbalances since that's such a big deal. recently i've been thinking i want to go into some sort of more medical aspect of the profession, maybe in neurobiology and tie that to prosthetics, movement studies, and then have my super scientific stuff be in tandem with my personal training and physical therapy. that'd rule.