Not quite sure, it’s a sign of acid reflux, anxiety, medication side effects, etc. but at the same time it could be lack of distractions or with mild / moderate depression.
ibuprofen and medical marijuana
Explanation: if you abuse these drugs then you can become very ill.
The blood vessels which carry blood towards the heart are the Veins.
Short-term effect of nicotine is increased blood pressure
You can breathe through your mouth because your pharynx opens up to two cavities -- your nasal cavity (nose/nostrils) and your oral cavity (mouth).
