Advice please! I'm losing my mind!

Brandi

Alright y'all! My sweet son Beau just turned 6 months old. He is super laid back 99% of the time, however here recently when 1 AM hits he SCREAMS unconsolably for 45 mins to an hour. Literally the only thing that helps is comfort nursing, and that only keeps him calm for a few minutes at a time. Is it teething? Should I be concerned about something else? It is very worrisome because he flips and rolls and kicks and swats and screams. I don't know what to do anymore. I work 3 twelve hour night shifts a week so my husband has him then and obviously comfort nursing isn't an option for him. Help! It hurts me to see him so upset over and over again.