There were 10 symptoms on the site I read. The one's I can remember are crying ALOT - I can not comfort him, nothing works unless he's laid on his belly and I either help him suck his thumb or try and get him to suck his dummy. Not sleeping for long during the day, on his belly he'll have a food morning nap and a good afternoon nap but only 10ish min naps the rest of the day. He will not sleep on his back or sides at all. They hiccup and cough a lot, Harry has hiccups at least 15 times a day and has had a little cough since birth. Has a grumpy/puzzled face, everyone comments about how grumpy he looks. They have excellent head control and are very alert. Again everyone comments about his head control, he literally flings his head about and is super strong, he's also constantly staring intently at people rather than gazing around the room. Latching and unlatching thoughout a feed (bottle or breast) and generally messing about with feeds, he does this every feed. They have to be held upright, Harry is only ever slightly happy when held up over your shoulder while you pat his back as your winding him, as soon as you change his position he screams! A gurgling belly, he sounds like he hs thunder in his bellya lot.
I'm on the iPad at the mo so can't copy and paste the list but that's the general gist x