How should I go about finding out if I have cyclothymic disorder

I have done some research, and I think I might have cyclothymic disorder. I show symptoms of hypomanic episodes and depressive episodes (I am not 100% about depressive episodes, but looking at the criteria for them, I meet a few). I definitely have never had a hypomanic episode or depressive episode. But I have some doubts that I have this. Like, wouldn't my psychiatrist have noticed if I had this? Wouldn't I be diagnosed already? So I want to see if I should bring this up with my therapist and psychiatrist. Maybe I am misinterpreting the symptoms.

For the hypomanic symptoms, I notice that at times, I feel the pressure to keep talking. I don't interrupt people, but I always feel impatient and feel like they need to be quiet so I can speak. I am not sure if I have elevated happiness, but at times, I just feel a sudden surge of positive emotions, and I can't figure out where that came from. I am sure that I have lots of poor judgement with things, but maybe that's my personality. I don't know. I definitely have irritable and agitated behavior. But I don't know if the anger is too extreme to count for this symptom. Because I get really angry at times. Recently, I have been doing good with anger, but sometimes I have a bad week where I get really angry. I do not think I have a decreased need for sleep, because I have read that for that criteria, individuals just don't feel like they need to sleep, whereas for me, I want to sleep but I just can't. I also get easily distracted and can't concentrate at times, but that is probably because of my ADHD. 

For depressive symptoms, I feel down a bit sometimes. I don't know if it is more than it is typically for people, although I have noticed this week I have been really sad. I cry easily at stuff, but I don't think that counts towards this. Like mentioned above, I do have irritability and agitation, but again, I don't know if it's too extreme to count. I don't really feel guilt, but sometimes I feel like I have no worth and that my family probably hates me and wants me to go. I usually always feel like that, but most of the time I realize that it's silly and my family does love me, but occasionally I feel it more strongly. I have periods of time with difficult sleep issues. I have noticed that the insomnia isn't always there, I noticed that there are weeks that I can fall asleep and stay asleep really easily, but there are also weeks (usually months) that it is very very difficult for me to fall asleep and stay asleep. And I feel tired throughout the day, even if I do manage to sleep well. And I just feel bored a lot of times, I lose interest in doing stuff. I have never, not even once, considered not being alive. 

So I am wondering if this stuff is important enough to bring up to my therapist and psychiatrist. I would say that these issues do cause me difficulties in day to day life, like the irritability definitely does, and a lot of the depressive symptoms do.

But I am worried that if I do bring it up to my psychiatrist and therapist, they wouldn't listen. Or maybe when asking my family, my family doesn't notice these symptoms because I never complain about some, or maybe I am just making a big deal about stuff. My psychiatrist has kind of brushed me off before when I mentioned the possibility of having excoriation disorder (which I am 100% sure I have. Like, I scratch and pick at my scalp all the time.). So maybe I should bring it up to my therapist first, I think he'd listen. But again, I am not sure if these symptoms are even severe enough for me to have cyclothymic disorder. Should I keep track of mood changes?