I feel like I am going crazy, not sure if its me or him

Hello, I'm new to this site. I feel like I am going out of my mind. I am not sure if my boyfriend of 2 years is even a narc or if its just me. I have been reading up on it and it seems to fit the bill but I still am not sure. I don't even know where to begin to even tell my story I am so confused and my head is spinning. We are on the outs right now and this time I feel like I might have the strength to walk away. I haven't eaten in 3 days. I cant stop crying. I cant sleep and even called into work for the past two days because I have needed to go into the bathroom and cry at work. I feel like I can't go to my friends for help because I am so embarrassed that I am even in this situation.