Have Medical Questions? Ask a Doctor Online!
How tall are you? How much do you weigh? Any weight change? When did it start? Is it consistent? Is it getting worse? Any other symptoms? Are you aware of anything which might have brought this on? Any medical problems? Any surgeries? Any medications including over-the-counter pills and herbs? Any family medical history?
Is your stress increased at home, school, or work?
You have many symptoms. It is not east to diagnose them online. You could have narrowing in the wind pipe, pneumothorax, nerve compression in the surface of the thigh, sleep apnea which could cause headaches, gastritis, and so forth. You should see your primary care doctor to have exam, tests, and imaging studies.
It should be alright.