Salaam alaykum wr wb
I feel my eyes cross when I close my eyes during dhikr and when I open they’re really crossed. Is this normal? It is very tiring. Could it be there is a jinn in my body? What do I do about this.
Try it with eyes open. Bad Jinn are not a fit opponent for the Light of the Prophet (saws) so seek Nearness to him through zikr and salawat and putting your heart with the Prophet (saws), his family and AwliyaAllah.