hi, although your TSH level is quite elevated but T3 and T4 are within normal range and you dont need aye external administration of thyroxine now but atleast once a year you should go for its follow up as increased TSH indicates that thyroid gland is not able to secrete enough T3 , T4 with normal TSH and that is why TSH secretion has been inreased to stimulate the gland further , so a follow up is required. are you using any hormonal pills , as they may cause weight gain. for your cough and cold you can take some anti histaminic like levocetrizine , you can take some inhalation if nasan congestion is also present like compound menthol inhalation, sensur ointment inhalation , nasivion nasal drop,you should also take some antibiotics like doxycycline or ampi-cloxacillin or roxithromycin , you should do gargle twice daily with glycoseptol or disprin soluble in water, you should take salbutamol inhaler when required , it can be taken before exposure to cold, dust of exertion as prophylaxis.you should try to avoid exposure to cold and all those allergen which invoke bronchospasm in your case. you should ask your physician or physiotherapist to tell some respiratory exercises which are known to improve lung function.drink alot of water and also take vitamin b complex and micronutrients.consist a physician if symptom persists. wish you all the best.