It depends on how high you are I guess. If you are bipolar disorder I, going manic is dangerous. If you are bipolar disorder II, you might end up with doing some stuff you wish you didn't. Your post sounds rational so you don't seem too high. The last two times I was fully manic I did not have depression afterwards so you might not drop into depression, unless that is your normal mood. There is a theory that untreated BP can make it worse, so we always of course recommend a visit to a psychiatrist and to take your meds. But some creative types enjoy their manic moods, apparently.