Babybella - welcome - i never got around to saying that earlier on - was abit tied up last week.
I thought/think he is teething, cause, drooling lots, red cheek on one side, and constantly stuffing fist in mouth. I ran my finger along his gum, and felt a lump. I can only assume thats it.
Also, in the UK, (i think) they say babies can start solids from 4months. I figure when i was a baby, i was started at 3month, my Dh was started at 9weeks as MIL couldnt keep him happy with milk, and we have both turned out ok. But, each to there own, and some babies just need that extra bit to help put some weight on.
Oh, Aiden does that thing as well, cry, and then, when you look at him, starts to smile. I sorta cottoned on to the fact that it also means he's tired as well.

Good luck with the OCD - big hugs to you, i hope you manage to get some things sorted out when you move. Oh, and good luck with the TTC3 - i have been thinking for ages that my AF is coming back. Nearly 6 weeks now since i stopped b/feeding, and nothing as yet.