How I wish I had seen this site when my little one was tiny! She was TT'd I knew it, i could see it, but the doc and midwife told me it was nothing to worry about!!!
Feeding was possible but very hard, like another nm poster, my little one could only feed for short periods of time before the effort exhausted her - so we were up to 10 feeds a day on bad days! at every visit i asked about the TT to be told it would correct itself - and that it was not policy to have it snipped - they expected it to snap on its own - i was advised to leave her crying long enough - no way was i about to do that.
After 4 long months of getting nowhere, i had the idea to ring direct to the hospital and referred myself - happily they agreed to see me and were astonished that we had not been referred by the gp as the tt was bad. we were referred to the surgeon the very next day and yes, up to 6 months they do the procedure with no pain killers. they ask that you not feed the baby for several hours to make sure they are nice and hungry - that way they latch on immediately after the procedure and the sucking acts as pain relief. my little one feed and fell asleep almost immediately.
It was distressing, they swaddle the babies to keep them still and its done very very quickly and there are several of you in the room at the same time. The other babies there were all under 8 weeks old so did not cry much. my little one was sitting up by this point watching with interest but no understanding of course!
her tongue was swollen for a days after but by about two weeks later the difference in the feeding was fantastic. she was sucking more strongly and less frustrated, she gained weight more quickly too.
I was tongue tied but mine was done before i left the hospital. my nephew had to wait until he was 6 months old, but which time he had to be sedated to do it, much more serious - and had terrible trouble weaning - he could not move his tongue enough to swollen the food.
I am happy to say I carried on feeding her until her 1st birthday.
Good luck