is the new detergent to blame?

Been waking up itching most nights for a couple months now. Can’t tell if it’s the room or just my skin being my skin. Switched laundry detergent a while back (the ‘gentle’ kind) and the itching got worse right around then, tho that could be coincidence. Scratched myself awake hard enough once that it worried me a little, which is rough when I’m the only one opening the shop the next morning. Part of me wants to rule out the detergent and the sheets before turning this into an appointment. Anyone else notice a flare line up with switching laundry stuff, or am I overthinking this?