Update:
20th November 2018 I had an operation after seeing a hernia specialist that advised my problem from
here was not a hernia that he could tell but was clearly something going on.
Surgeon said I had a 2-3 cm long tear in my abdominal aponeurosis my lower right side which was closed up.
Got back in to the gym last night 7 weeks post operation. Advised recovery time was no exercise at all for the first couple of weeks, light exercise after 4-6 weeks, full healing to take up to 3 months.
Squatted the bar for 4 warm up sets and then moved on to 40kg for a few sets. Taking things super easy. Everything felt good, moved on to do some BOR's with just the bar and something didn't feel right during my third set. Stopped instantly. Things felt reminiscent to how they did pre-op...not as acute of a pain sensation but as soon as I felt something I stopped.
Now concerned that the operation I had may well have fixed something, but didn't actually fix the problem source. Maybe as the fix that happened was near the surface that my problem persists from deeper inside....I get the feeling I may have another operation in my near future.
Here's hoping that I was just a little eager and another 4-6 weeks of healing time will be the answer.
Early 2019 outlook not as positive as it was, although my squat form looked tidy, and in flat shoes not my lifting shoes!