Hey there TWM.... welcome to the brotherhood of daVinci veterans. After 5 weeks post-op I would think most of the anastomosis would have dissolved by now or whatever term they call it. The perineal pain
that I can definitely address. I was miserable for six stinkin' weeks, post-op with sharp, burning pain similar to what you describe, but very intense . The pain never subsided while I was awake. At first we thought (my surgeon & me) that it may have been caused by things internally fighting for the space the ole prostate once occupied, pressing on nerves, swelling, healing ... in short, all that goes on in there after it has all been traumatized by surgery. Then one day I woke up and the pain and aching were gone and never returned, much to my relief.
I am now nearly two years post-op with <.01 psa results and lovin' life. It is all now just a bad memory!
My surgeon now believes that a nerve may have been accidently stitched when they were repairing things at the surgical site and once the internal stitches dissolved completely, the nerve was released and WHALA ... no more pain.
Have things checked out just to be sure, but I suspect you may be a slow healer, like me. Take care!
Thom in VA.