my ds is the same little lamb, and got worse at 7 months, even worse at 8, and now at 10 months he has been up every 40 mins wanting to feed some nights exhausting isnt it, I have a 3 yo DD too so cant catch up on sleep in the day either! I too wanted to switch to formula but ds is having NONE of it and refuses anything other than water unless its from my boob!!
For me i decided to wait until he was a little happier (after the obvious bulges of his teeth had come through) and 3 nights ago I decided enough was enough......I started by no longer feeding ds in my bed, I feed him in the rocking chair in his room then I put him into bed and stood there shushing, rubbing him to sleep. once asleep everytime he cries for a feed i fed him, but in his own room and then I forced myself to put him back into his own bed after every feed (stayed there with him if he was awake or distressed rubbing, shushing etc very hard work and up alot first night) 2nd/3rd night I only fed him every other time he woke up. For the other feeds i cuddled and rocked him back to sleep to get him used to not having as much milk at night (wasnt as bad as i thought and he went off quite quickly) and put him to bed in cot. 4th night I set up my bed next to ds cot and I feed him everytime he wakes but not between 11pm and 6am. Instead of taking him out to rock I laid next to him and put my hand through the bars to let him know its bed time, but I am stil here. evrytime he wakes i literally roll over on my make shift bed slip my hand through the bar and he settles after a little while. He has started to settle very quickly now, and tonight just on night 5 I put him down awake tonight he settled himself and went to sleep in 9 minutes after a little but of fussing. I plan to sleep in his room for the next 10 days and gradually move further and further away from his cot until I am sat right at the door at which point i am hoping he will be ok and i can rejoin DH !! ds was pulling himself up at 7 months as well, he is also v big, I have found that by laying on the floor next to his cot it encourages him to lay down as he wants to be next to me, as opposed to when i stand over cot he stands wanting me to pick him up. He seems to have got the message (or be getting the message) that cots are for laying down in and sleepin fingers crossed hey x
not saying this is the right thing to do, but so far its working for me xxxx hope things work out for you soon x
ps think the correct term for the method (ish) i am using is gradual retreat, or gradual withdrawal, if you were interested in finding out more. good luck though whatever u decide.