I've had several abdominal surgeries/not episiotomy. Each surgery took different lengths of time for the stitches to disolve depending on what was used for stitching. I was seeing stitches pushing their way out for several weeks/months after one surgery.
I suggest you stop pushing/poking to see incision because doing so irritates it and will prolong healing and loosen stitches. In my experience having a stitch push out and be visible is part of the healing process.
I suggest that you see the doctor again to tell them you are anxious about the incision. Sounds like te doctor tried to reassure you but you are still worried. No need for a second opinion. Instead you need to have a better understanding of the process.
Sounds like you're concerned about the appearance of the scar. Know that the scar's appearance will gradually lesson over time. The stitching doesn't have to appear perfect now. Relax about the incision. Use your energy to take care of yourself and your baby. That incision will heal.
It's been just a few days. And the incision is in a dark and moist place. It will take a few weeks to be entirely healed and it will continue to be tender for longer. My abdominal incisions were sensitive for months.