Pains at 35 weeks

I’m 35 weeks tomorrow and for the last hour or so I have been getting a wave of pain across my middle back and my sides and I think also under my ribs. When itnfirst started I actually thought it was hunger pains so I tried to eat something but its gotten stronger, they aren’t unbearable but quite sore and uncomfortable. I can’t concentrate on timing them, they definitely dont seem to be every 5 minutes for a minute or anything like that. What do you all think? Is this just normal late pregnancy pain or something else? Also baby has been active throughout this.