So I went to the specialist and had an endoscopy and the good news was that the fissure had totally healed!(at that time) - he made me laugh as he said it was the best bum he had seen in ages lol.
I told him when I use the Nifedipine there are no issues but when I stop it comes back. He said that I might have to use Nifedipine for life, or I could try botox, but he said I would have to let the fissure come back for him to do that.
So not sure what I should do? Any experience or advice out there?