I am also experiencing similar pain. I am 19 weeks pregnant and my belly button and the area right around my belly button hurt from time to time. It is sometimes constant but other days doesn't hurt much at all. I have been experiencing this for a couple weeks now.
The immune system is intricately connected to the hormonal system and the brain via messenger molecules, so that emotional stress and factors like insomnia have a great influence on its ability to function properly.
Insomnia is a sleep disorder. Individuals who suffer from insomnia find it difficult to fall asleep, stay asleep, or both. They donât feel refreshed when they wake up from sleeping, which can lead to fatigue and other symptoms. It can be short-term (acute) or long-term (chronic).