behavior bipolar

Can the behavior of someone who is chemically sensitive imitation of someone with bipolar disorder?
Could the behavior be as extreme that the person would have to be taken to a mental institution? Could the behavior is caused by the drugs (chemical sensitivities) not work as they should? Please, no comment on the behavior due to illegal methods or other drugs.
I would be careful to help this person all you can. It is very unlikely that anyone exhibiting symptoms so extreme it will do as a result of allergies. You can have two (or more) diseases and then it may be confused by the way symptoms manifest. Evidently, he or she needs proper medical care and counseling. If this person is not you and it is hoped that the attention or support they would be seeking help from doctors and / or mental health organizations.
Re:Brother of Crazy Girl On Train.