I feel like a prick in my skin that feels like a pin when I touch it - 2 months post-op.

If you have a localized bump in your incision line, with localized pain that feels like a 'pin',  this sounds like a subcutaneous suture.  This most often is absorbable, but can take 3-6 months to absorb.  Rest assured, most of these digest away on their own, but if it too painful and bothersome, your PS can put some numbing medicine around it, make a small incision and remove it.  

Its normal to experience strange sensations during the recovery phase and the nerves disturbed during surgery begin to recover and “fire” signals.  Its possible the lump is a suture that is working its way to the surface.  This is very common and it may “pop” through the surface of the skin and cause a minor irritation.  This typically resolves own its without any further intervention. 

Many thanks for your query 
Scar May be tender for several reasons.i assume 2 months down the line scar has got no localised infection such as stitch abscess. In the absence of infection tenderness is not in common and May be either due to sensory nerve sensitivity or unresolved deep suture.
You can try gentle massage with moisturiser. In normal scar forming individuals scars can take Upton 2 years to become soft, pale and non tender but most of these symptoms will settle much earlier.
If you have any other concerns  please check with your surgeon