Here are some things that I still worry about, even though on this second time around I feel like I should know better:
1 - Obsessive/Compulsive type hand and wrist twisting
2 - Still can't roll over at 7 months
3 - Isn't sleeping more than 5 hours at night
4 - Head sweats so much it makes wet spots on my clothing
5 - Excessive ear wax
Oh, I know that nothing's wrong with him, but sometimes I'll see him twisting his little hands for an hour, or flipping his tongue around in his mouth like a crazy man, and I have a twinge of fear. Not a "mother's instinct is usually right" twinge, but an "Oh no, they were RIGHT about the vaccines and what have I done to my baby??" twinge.
Luckily I'm both too busy and too tired to actually pursue any of these panics. But I don't make fun of moms that are worrying about something that seems insignificant to me. I suspect it's a hormonal imperative for mothers to fret, and according to my mom, it never ends.