After 2 years and 2 months of nursing, I completely weaned my son a month ago at the very beginning of my period. We were down to only one nursing at night so it was a very gradual process. Didn't think anything of it until 2 days after Christmas when I started feeling extreme nausea. I had gotten my period (totally normal as always) and this nausea started on the 7th day of my cycle and continued for 5 solid days. It felt as if I was pregnant, but there is seriously no chance of that and per doctor's orders, I took the test anyway - negative. For 3 days it was just constant all day long. For the next 2, I had severe diarrhea. Everyone I talk to says it's something I ate or a bug. I've had food poisoning and plenty of bugs, and this was neither. My OBGYN and family doctor both felt it's neither as well, but they didn't offer me much info as to what might be going on.
I'm an engineer and very exacting. I track everything. I know I ovulate very late in the cycle and I knew I was not pregnant. My question is whether or not hormones could be causing this. Around the 7th day is when estrogen levels start climbing and I know that after weaning, prolactin is produced - not sure if this all is due to hormones balancing themselves out.
Will be getting bloodwork done to rule out serious problems, but wanted to see if anyone has some good info on what your hormones do after weaning. It seems many moms complain of nausea after weaning, but not a whole lot of details about the "why" to be found anywhere.