How long can you feel it?

I got a methotrexate injection to treat an ectopic pregnancy on May 29, so a little over a week ago. I’d been bleeding

since May 12 (it seems to finally have stopped today). I never had any cramping or real pain. For the last couple weeks though I can feel it, like a dull irritation, almost like a knot you’d feel in your neck after sleeping on it wrong it something. Not painful, just a sensation kind of making me aware that it’s there.

After my ultrasound they said the “mass” was just 2cm and my HCG is low and dropping fast (May 28 = 201; June 1 = 271; June 4 = 202, so a 25% drop between day 4 and day 7)

Anyway, I’m just wondering if anybody else had this sensation and when it went away?