ill effects of creating, as i say, 'excess energy'.
I still don't get it.
if you've suddenly got a source of happiness, or excitement, or sadness to deal with, but don't have any ready object to move it to, you are left in a state of anxiousness, nervous excitement.
That sounds to me like an emotional instability. Some sort of disorder, or trauma. Emotions don't 'accumulate' like that, nor can they be 'moved' elsewhere in literal sense.
And notice, how I didn't use words "emotional" or "emotion", but rather, I used "expresiveness", and "emotional directness", because those two have two different meanings. An emotiveness in music is how *much* emotion is actually conveyed, and in that case, both baroque and romantic music are very emotional. Expressiveness is, for example, how Romantic music is utilizing more and more techniques(tempo, dynamics, phrasing etc.) to express the same emotions every other music does. It's not more exciting or more sad, it's just expressed in a broader range.
For analogy, black and white photo (baroque) can be deeply moving, but a full-color film (romantic) might be both moving and dramatically expressive.