Bipolar 2 and I have questions

Hi, I am new to this. I was recently diagnosed with bipolar 2 and I am still trying to come to terms with it. I am scared to get comfortable with it and because I feel like once I do it is going to taken away. It makes be feel weird that I would want it. In the beginning I just wanted an answer for how I was feeling. Now I am on medication, and I believe it is working because my mood shifts are no where near what they were. I am now left feeling lost and paranoid that I somehow made it all up because my extreme ups/downs are not there. I feel numb now. My depression is not as bad either. I guess I feel good, but it is a werid feeling. I guess I can't remember what good feels like so I am scared. I feel like I am constantly waiting for the ball to drop. I feel like I am standing in front of this abyss and anxiously waiting for it to swollow me up. I feel like I was given this diagnoses and now I have all these questions because I want to understand and no one to talk to. My family is supportive, but it's hard to talk to them about it. I've always been quiet and kept to myself. I feel like I process/keep everthing inwardly and never let anyone in. So now that I have this diagnoses I feel like friends/family won't believe me. I feel trapped. Is any of this normal? Is it normal to take medication and then feel fine, and think you don't need this? That somehow it was all made up and you should stop taking the meds because you don't have the diagnoses you think you have. Sorry if I didn't make any sense.