The noise can drive people nuts. Get it treated and try everything. Just let your Doc know if you try homeopathic remedies. He can't tell you no, but he needs to know everything you do.
You feel a dysphoric feeling - meaning "not so well feeling". Your body seeks warmth, so as to avoid unpleasant skin sensations, joint stiffness, runny nose, and concentration which is sometimes not...
I feel bad is correct. In this case, "bad" is what is known as a "predicate adjective". Predicate adjectives follow certain types of verbs such as: seem, appear, look (he looks bad), sound, feel...