Any suggestions welcomed!
Left nipple has been very sore for about two weeks, and I can't figure out the cause. Righty is fine.
DS2 has been BF since birth, had a TT which was divided at 1wo, and we've seen the lactation consultant off and on up til about 4/5mo as he's had a few latch problems which seemed to be caused by his high palate.
All seemed to be resolved as his latch has been fine lately.
I've now had a stinging/burning pain in my left nipple for nearly two weeks, agony during feeds, and sometimes still hurts for up to an hour after, sometimes it'll still be mildly stinging many hours later.
I have checked for thrush - no obvious symptoms on either DS or me.
I'm now wondering if it could be vasospasm/BF Reynauds? The tip of my nipple does go white in the centre when it's hurting - if I put my palm over it the pain goes away with the heat and comes back if I take it away, but I can hardly walk around with my hand down my bra all day!
The other side goes white too, but isn't hurting tho. 
I am prone to blocked ducts (I get little hard milk grains stuck in the nipple that I have to manually remove), but I've checked a gazillion times and there's nothing there.
There is a tiny area of hard skin/scab formed in the centre, so I'm using Lansinoh to keep the skin soft.
Probably a coincidence, but DS has had diarrhoea for the last week and a half, Doc says a bug, I think it's not helped by the sore boob meaning he's getting less hindmilk than usual as it's so painful to feed on one side.
Any ideas? 