Azelastine nose spray and severe fatigue.

Has anyone else had experience with azelastine spray for allergies and it making you extremely fatigued?

I started using it not long ago and took for almost 2 weeks and I took it only at night because I figured it would make me drowsy. It helped with all of my allergy symptoms but I was noticing I wasn’t able to get up in the morning without being really groggy and I was groggy throughout the day and at about midday I would feel absolutely miserable. Head felt like a bowling ball I couldn’t keep up and couldn’t focus on work. When I stopped using the spray I felt WAY better, but allergy symptoms came back obviously.

Anyone else have any symptoms like this while using azelastine spray?