It's been 3 years i guess..im more than confused all the time..my feelings, my behaviour, my thoughts are just so different.. sometimes i can't figure anything out..i thinking too much..but that's constant thoughts rushing..or i can't think at all?

Numerous possible considerations to explain this, based upon organic or emotional mechanisms. A full basic evaluation should be initially completed by your primary doctor, subsequently a neurologist or psychiatrist may be needed. This should cover metabolic issues such as thyroid, sleep problems, depression, thought disorders, and many more.

First please have a complete physical examination to know if you have an illness. If not, please see a Clinical Psychologist with expertise in multiple types of psychotherapy to help. If you are sleep-deprived that could be the cause many problems. You may be referred for a sleep study. If you need medication that should be managed by a Psychiatrist.