I'm really worried because I've been using Nexito Plus for about two months for my anxiety disorder, but I stopped taking it suddenly a week ago. Now I'm facing some issues like my anxiety's spiked up, there's this hissing sound in my ears, I'm feeling pain in my chest, and there's this weird pulpitating sensation. I'm also having pain under my ribs near my liver, but my ultrasound came back clear. Are these withdrawal symptoms from stopping Nexito Plus, and do you think it's related to me quitting drinking and smoking? I'm not on any medication right now and could really use some advice.