What is the solution for aging dents in forehead please?

Over the last year or so I have developed deep dents in my forehead (veins in my temples are also now prominent). I have been in poor health with an inflammatory illness in that time, and feel I have aged quickly. I am 42 years old. I have not damaged my forehead, there is no problem with the bone, and it is not genetic as no one else in my family has these dents. Is this fat loss? Could someone please suggest a permanent fix for them? They are extremely upsetting and disturb me greatly.