I can totally identify with you. It's tempting to believe you can act normal, but you're probably only fooling yourself. (I found that out only after I started having problems at work)

Anyway, you deserve to be happy, so do yourself a favor and try to get a bit of help
- Change Medications
- Take a Vacation
- Read a self help book (Preferably CBT based)
- Cut back on sleep (sometimes it helps, shoot for 6 hrs)
- Join a support group