I know this topic has been done to death but a bit of help would be great!
Our 6 month old has always been a terrible sleeper and to make a very long story a little bit shorter, after weeks on end of waking between every 20 minutes to 2 hours with very little being done to soothe him, we "decided" to sleep train him with the Ferber method. (We were discussing the option, when this one night there was actually nothing I could do to calm him and get him to sleep so I had to just leave him and check and dived right into Ferber). He is definitely not an easy going baby so I used smaller intervals than the standard Ferber ones because he gets quickly distressed, although our presence does very little to calm him, I would rather physically check to see if he's ok. First night, he slept 6 hours, longest stretch since he was 3 months old. 2nd night not so good but nights 3, 4 and 5 got progressively better, when on night 5 he woke twice for a feed and went back down without any fuss. He has been slow to gain weight so I'm not comfortable giving the feeds up all together. I have also been doing the same for naps which have usually only had 5 minutes of crying before he goes off, but they are nearly all still only 30-45 minutes long.
NOW the problem is that the last 2 nights, nights 6 and 7 have been absolutely attrocious. He has woken up so many times and done his usual scream. He does eventually settle himself but it can sometimes be for only 10 minutes before he starts again, it is not restful for any of us. The best he did last night was one 3 hour stretch followed by another 2 and that was pretty much the only real sleep we had.
I suppose I am wondering if anyone has any insight - is this simply an "extinction burst" type thing that we have to power through, is he poorly/teething/cold etc, am I making it too confusing for him by still feeding him periodically or is this method simply not going to work for us? If it's the latter I do not know what else to try as this was our last resort! I doubt myself everytime he wakes and screams and I am entering a downward spiral in my very sleep deprived state 😬