Random Milestone Moodlets

Same! The only milestone my adult Sim had was getting married and having a baby, but they're getting the "Sting of Rejection" mood. 

I have had the "Sting of Rejection" from recalling a milestone my Sim never experienced as will .

This is happening to me right now as well, specifically the Sting of Rejection (from Recalling a Milestone). This save file has only been a few weeks with fresh sims, the only milestones I have for this sim are the woohoo, marriage, engagement, best friends, fell in love, finished a degree, and started a business.

It is bad enough that elder sims must be haunted by a single negative infant milestone until their dying day but now sims are getting negative moodlets for milestones they never experienced. I stopped trying to play after eight households because all YA, adult, and elder Sims were getting negative moodlets from reflecting on phantom milestones within 24 sim hours. What are the odds that 5 YA sims who are not directly interacting with each other would all roll milestone recall fears in the first fifteen minutes their household was loaded? One of the two teens whose household I tried was hit by sting of rejection but that may have been valid despite him not having a listed milestone of being rejected. One sim who has had nothing but positive experiences with the only three sims she has met was struck with a moodlet about being hated by too many people. 

PC via EA app, no mods nor CC, 

Been experiencing it two. Would be more annoying then harmful if it wasn't for the fact 2 different sims recalled negative events they never experienced.

same here , even on fresh sims with no milestones