Please can someone help as I’m scared to death. 15 years ago I used to drink very heavy. But I then stopped for a long time. I then began drinking sensibly which I have done until I stopped 3 years ago to take care of my mum. At the start I was fine but I started to get a pain up and down the left side of my head with nystagmus and tachycardia which was diagnosed as trigeminal neuralgia. The neurologist also pointed out that I had a lesion in the pons area of my brainstem which I said must have been when I was drinking heavy. He discharged me and I thought nothing of it but gradually the pain has moved into the middle of my head as well as the left side and getting double vision off. Could this lesion be new? How would I know? Can you get trigeminal neuralgia on the middle of the top of your head? Apologies for all the questions.