An exercise stress test can be considered to exclude any coronary heart disease. At age 34, this would be unlikely - but with the high cholesterol, it can be a risk factor. Once the heart is ruled out, you can then focus on less serious causes.
Such causes can include anxiety, panic attacks, or GI causes of chest pain - such as GERD.
If the stress test is negative, you can discuss with your PCP treatment for the other causes of chest tightness outlined above.
Followup with your personal physician is essential.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
Have you ever considered to get help from a chiropractor?
Some nerves and /or muscels in the back can trigger discomfort like yours also.I suffered a lot of chestpain , including
problems with breathing which was triggered by muscles in the
back.The chiropractor helped 100 % .