Dear All bit embarrassed about my last post, was a tad fraught at the time after couple of unsettling days.
'Pain' has settled today into managaeable size - no further increase in surface area affected and no shooting pains today. Indeed I've introduced ibuprofen once a day as was advised I could.
No more seepage either! So that's good. Drain still in which is also ok.
So in short I hope this reassures anyone out there going thro the same. Peaks and troughs!