The skin problems and cold-like symptoms are due to allergy
. This is called allergic rhinitis
. Your headache is also due to inflammation in sinus
due to rhinitis. Take some anti-allergic tablet. Put 2-3 drops of nasal decongestant drops (e.g. otrivin
) in oth the nostrils followed by deep plain water steam, at least 2-3 times a day. This will relieve both nasal inflammation
Your loss of appetite may be due to disturbance in metabolic activities due to change in place, food and water. Take very light food till you get normal appetite. It will gradually increase as your body get adjusted to the changing condition. Till that time if you want you can start some appetizer.
For hair loss, please check the water supply. This is the most common cause when you change your place. Even your loss of appetite may also due to hardness in the water. If you are getting hard water (e.g. bore well water) it may cause the hair loss because of high content of heavy salts. If possible, change the source of water to soft water; or have some water softening plant installed so that you can get good quality water for drinking and bath.
Hope this helps.