This is so strange and I don't even know how to properly describe it- but my left nipple hurts. There's nothing visibly wrong with it, no milk blister, no cracks. LO is 5.5 months and does pull on my nips every once in a while, but this has been bothering me for weeks. I can't remember anything specific happening to it.
It's a feeling of soreness, as if someone just pinched it and twisted. It hurts when I nurse or pump and is just uncomfortable when I'm not nursing/pumping.
Anyone experience something similar? I've had months of pain-free nursing, so this is taking me back to the dark days of when that shiz hurt! Any thoughts?

N '13 January Siggy Challenge
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Re: Left Nipple Soreness
Dx: balanced translocation and LPD
TTC since Oct 2011
BPF 02/19/12, EDD 10/31/12, natural m/c 02/28/12 (4w6d)
IVF (BCPs starting 10/30/12, ER 11/18/12, 5dt of 1 beautiful, healthy embryo 11/23/12)
BFP 12/02/12, u/s @ 6w,5d showed 2 HBs! Identical twins!!
Bed rest from 21w-35w due to short cervix, hospital bed rest from 23w-32w due to PTL
Our rainbows were born 07/19/13 (36w, 5d)