JHH
Ahh yes, those strange shooting pains that come out of nowhere, especially when things seemed to have quieted down, down there.. I remember them fondly-(grudgingly fondly that is).
I would not let that phase me one bit though if I were you.
Now I got them (the intermittent shooting pain), and I never had the extreme spasms you had, so that may be quite normal to ecperience this.
Does it mean the botox isn't working? Looks like you have a timely visit coming up to floor the ?. Hopefully you wont need anymore injections or anything like that.

About the scar tissue. Boy was I a mess down there too. I easily felt as ETO says the "rougher rippled" skin of my scar as I did my daily finger probe in the showers.
This went on for years with me, the tearing and healing, the feeling the scar tissue get smaller and smaller until BAM!! another tear from a hard BM.
Fast forward to today, well over 2 years since my last fissure, no scar tissue, no rough dimple feelings whatsoever. And actually I felt this way well under the 2 years....I wanna say about a year and some months things felt 100% again.
Granted JHH your scarring may have been much worse than mine, but only time will tell. Lets cross that bridge when we get there. Your most important thing to do nowadays is see to it that you get there right.
Soft stools is your biggest hurdle right now. If sneezing or walking or lifting seems to trigger a spasm, we sure should find some coping techniques to try to avoid those spasms. A simple dab of cream before a walk may do the trick.
You heard it plenty times before, but this is where finding a routine for you, in your delicate stage of healing and strengthening is paramount. We all here are so so pulling for you brother, promise us that you will not let anything get you down,
promise us that you will fight this to the end..........Can we shake hands to that.......

Thanks JHH....you will ultimately win.