Welcome to PC,

It does appear after reading your post you certainly could use some help. Does it matter to have a diagnosis ? it helps for insurance purposes, some people want/need to know a diagnosis, others just want help to enrich there lives and address unhealthy behaivors and really dont care about a "label"

You certainly see a pattern with your moods. What you need to decide is whether you want to get help for all the problems when your overwhelmed with them or just get help and keep at it regardless of mood. Medications help some people , But honestly medications or not its about changing your lifestyle and learning coping skills. You can get Therapy whether you are on medications or not... whether you have a diagnosis or not.

I hope you find the help that will work for you.

Again, Welcome to PC