Excess, superfluous, overabundance, overage, overflow, overkill, overmuch, oversupply, superabundance, surfeit, surplus
Yes. By definition, too much is too much. You will suffer that by which it is in fact too much
too much
He who drank too much
Countless means too many to be counted.
having too much water in your body
A surplus is having too much of something.
The word is obsess. It means to think too much about something.
much better sweeter
The word drag means a bad situation ; or something heavy that is too heavy to carry
haughtiness; too much pride; stuck-up.
mass
No. The word "overuse" means to use too much. It could of course be related to the body, but it doesn't have anything to do with micro traumas specifically. You could use a word too much, and people might find your paper repetitive. If you use a broken arm too much, that seems like it would cause micro traumas, but the word "overuse" isn't confined to that definition.