I am Narasimha and my Lord is nirguna , niranjana, nirakarsheya, paramtma Sri Dakshina Murthy.
Any one wants any information or help on Sri dsakshina Murhty and his forms please dnt hesitate. I will help my level best.
Oh my goodness, I didn't realised that you had changed your name and religious status. I thought you were gone! Well, I finally talked to dad and he has experienced some of what you have with meditation. Heat in the head is nothing to be worried about. It is a build up of prana, energy, and will go away by itself.
Hope all is well.
Chanting Om Namah Shivaya 108 times for 40 days straight is a good fast way of reaching whatever transformation that lies in store for you. shout Om Namah Shivaya! with love