Stress definitely can trigger hypo-mania, I was just there myself.

We lost our home, moms very ill, problems at work and more.

I tried to harness the hypo-ness so I could get a lot of things done and I did but did not get any sleep, so the days ran together and my meds were not taken properly.

No sleep for 5 days can place you in a delusional state like it did to me.
I didn't know if I was in a dream or real life and at one point I thought I was dying.
I was so mixed up and it just happened so damn fast.

It is wicked scary to be in that state.

I am so glad I have a caring family who helps me.

I wound up in the hospital within 1 week of all that my meds got straightened out and I'm ok ...for now.

Remember this is a serious illness which can be very unpredictable.