Could My Reduced Sleep And Increased Anxiety After Stopping Kpgaba Be Due To Withdrawal, Considering I M Also On Olmesartan And Nexito?

I was taking Kpgaba 75 medicine for last two months for cervical neck pain. Along with it I am taking Olmesartan 20 and nexito 5 mg since last 3 years. During the use of kpgaba my sleep was very good and I used to feel drowsiness in the daytime. However, as I have discontinued kpgaba since last 7-8 days, my sleep is reduced and since last 2-3 days I am getting lot of anxiety attack. I am unable to perform my regular works. Is it due to kpgaba withdrawal or else?