ADHD,OCD,Sensory Intigration,Bipolar, ODD Is there a disorder my child does not have?

It's been a long road and the end is no where in sight. We've been fighting this battle for 6 years and I have heard many labels thrown out there. Some fit some don't. I am completely overwhelmed and I thought surly I can't be the only one out there struggling to deal with this.