DS is 5.5mo and I love him to bits, but there are a couple of things he does that drive me bonkers - pulls (what's left of) my hair constantly so that I spend most of the day looking like Wurzel Gummidge and flails his wee arms about so I'm always getting hit/scratched (despite cutting his nails almost hourly, or so it seems!). Both of these things really wear me down for some reason - neither is intentional obviously, and are just part and parcel of him being a baby, but I could happily live without them! So what does your LO so that does your head in?!