My gorgeous guy Rusty has many frisky happy days and then sometimes has days when his tummy is upset and he is listless. For a variety of reasons I believe that occasionally he has nasty headaches. He has found the cure.
Go press your head against someone that loves you (preferably while lying on the heating pad). Things are warm and happy then even if not completely healed.
Rusty is at the back leg outstretched, Princess in the front.