Hi Aldren,
I can relate to your attitude of wanting to overcome this without medication and doctors. That's what I'm doing too, and so far so good. I believe that we all do what works best for us, as individuals. Just wanted you to know you're not alone in your approach.
I think it's safe to say all panic sufferers are perfectionists in some way or another. It's that fear of losing control.
Anyway I've thought of a few things to offer you.
Are you a fairly organised person? If so, could be that subconsciously you've got yourself in this routine. This'd make the pattern quite easy to turn into habit, if you thrive on routine.
Could be that you're afraid of being happy. So for every good day you have, there's got to be a payment made. Like umm As soon as you let your guard down and enjoy life, something is going to creep up on you and take it away. So having nothing to lose is a way of protecting your feelings.
Do these good days, bad days follow a pattern of days. For example maybe they follow the days you look forward to and the ones you dread. Like work days and weekends. Peoples immunity can be effected according to the days/activities we like and dislike. Having panic disorder would magnify this.
The Moon, as silly as it sounds, effects us too. Emergency rooms always get an influx on a full moon. Effects our brain in a similar way it effects the tides. I nearly always freak out at night when theres a full moon.
I kinda have a pattern like you. But it's a little harder to predict. A lot of my cycle comes down to my period though. I realised I needed a balance. I'm a fairly manic personality. I overcome this by balancing my moods. Trying to meet the two extremes in the middle. I'm doing this by adjusting my attitude towards life. I was afraid that if I relaxed, I'd lose who I am. I like who I am, and didn't want to change it. What I didn't realise is that I wasn't enjoying who I am. Relaxing and meeting the two extremes in the middle has made me enjoy my moods, instead of fearing them. Helps me to feel out of reality rather than fear too. Maybe this is something you can relate to as well.
hope this has been helpful, keep us posted. :)