Definition of carpentry for English Language Learners. : the skill or work of making or fixing wooden objects or wooden parts of buildings : the skill of a carpenter or the work done by a carpenter.
Causes of feeling gassy before period. The most important cause for too much gas before periods is the Hormonal inconsistency and imbalance caused by increased hormonal disturbances in the female anatomy. Excessive levels of hormones lead to problems like pain, uterine cramping and muscular contractions in the stomach.
The only real medical reason you could be unusually tired during your period is if you have anemia, which is an iron deficiency. For some women who are anemic and have a very heavy period, the first day can be a doozy. However, this group is in the minority.