5.5month breastfed & sleep help!

Up until a month ago my son slept quite well from about 8pm-8am with a feed at 2am and 5am. This varied slightly but mostly just 2 feeds a night. He also napped pretty well in the day and I was starting to get him on a good schedule.

But now his naps are only 30 mins during the day, unless I let him sleep on me. He is waking up at night every hour-2 hours. I'm wondering if he is waking to get comfort from me. But if also read about growth spurt/ development stage at this time and I just need to ride it out?? Please help, iv had no more than 2 consecutive hours sleep in a month and I need things to change for my own sanity!!