"i&#039;m pregnant and my dr recommended me to take unisom and b6 at night for my morning sickness and neasua. when i took it i easily fell asleep but i could not sleep throught the night i would wake up at least 3-4 times. i work up irritable (more than normal for being pregnant) and it also triggered my migraines. almost everytime i took this i would get rly bad headaches"