Should I tell my boss im bipolar?

Firstly, I work at a isted living home for the elderly and was hired as a dietary aide, then shortly after my probation period was over (3 months) I was promoted and offered the position of a dietary weekend cook. Now it has been noticed by all the residents and all the staff, but I am becoming really paranoid and procrastinating more and more. I seem to stress alot and am getting bad memory. Now I am dealing with the elderly and I was doing good at first, there are a couple residents there with ADHD/ADD and one with Bipolar. Also another one has a Ph.D. in Psychology and was a licensed therapist for the state of Oklahoma for her whole life ( she told me I could use her as a reference anytime, but I declined because of my paranoia). I dont know if I should talk to them or not. Though they are noticing something is wrong with me and I feel like I need to either get fired or quit because I know I need help. I also work for a corporation named, Cathedral Rock Corporation. Took much stuff goes on to explain if you can please look that Corporation up.