Hormones making me crazy?? 3 mo pp

My daughter is 14 weeks tomorrow! She is my third child and nursing has been going very well...(she is exclusively breastfed) the best of all of children; however, I have been noticing some strange things. I have read about an increase in thirst but some nights it’s like it’s impossible to quench. Also, I have noticed an intense amount of saliva and sugar cravings. The other odd thing is fruit cravings. I hardly ever eat fruit except when pregnant. We have had sex like twice since having our baby and we used a condom. Am I losing my mind here? I don’t recall any of this happening for my other children. Anyone else have anything like this happen? Thanks for your input!