Anxiety

I have always had anxiety and I was on medication for it but I didn’t notice it getting any better so I stopped taking it. Now I feel ten times worse and every time I start to think about something that stresses me out I get nauseas and/or I start to freak out. I have no idea what to do. My sister told me I have been acting differently. I don’t have any desire to do anything. I feel really sad all the time between my dog passing away in early December and then my other dog is really sick with cancer. Along with problems with my boyfriend. I want to get back to normal but I have no idea how. If anyone has suggestions that would be great because I hate feeling this way 😔😔