Dehydration could be a cause. Make sure you drink plenty of fluids. Rehydration fluids are available OTC, but water is fine. Compress it with something warm. If it persists after two weeks or it becomes more severe, contact your doctor.
The main artery that feeds the legs would be the femoral artery.
I believe you would use a tracer chemical and an MRI or CT scanner.
Right femoral artery, right external iliac artery, right common iliac artery, abdominal aorta, thoracic aorta, descending aorta, aortic arch, ascending aorta, right coronary artery.
the pulmonary artery
Probably the femoral artery which is palpable in your loin.
Because it cuts off circulation? That would be my guess. It cuts off the blood flow to the femoral artery, which is on the inside of the thigh.
For veins the longest is The great saphenous vein. For arteries width wise it would be the aorta but length it's the the superficial femoral artery.
Femoral
Yes, it would be the femoral vein. If it is cut, you could die in a matter of seconds. If it is just injured, then a clot could develop. While death from the initial injury would not be immediately, a thrown blood clot could cause an immediate, life-threatening condition.
The most common cause of such "chest pains" would be due to esophageal refllux. However, in certain instances, especially in those individuals with significant cardiovascular risk factors or diagnosed coronary artery disease (for instance), caffeinated products (...and caffeine is a stimulant) can cause coronary artery spasm and angina. Therefore, if the chest pains are heavy, in the center of the chest (typically), and occur with numbness, pain or tingling of the jaw, shoulder, arm or hand, then it would be best to have this assessed emergently.
Constipation, I think. It happens to me.
The survivability of a bullet wound to the femoral artery is dependent on many factors. The most important factors are the severity and location of the bleeding and the availability of advanced medical care. The size of the victim, the possibility of infection, and the activity of the victim after being shot are all also extremely important. Serious bleeding from the femoral artery must be properly treated immediately. A few minutes can be all that is necessary for the wound to guarantee permanent disability such as brain damage or the need for amputation. A wound to the upper femoral artery caused by a direct shot from a heavy rifle slug is likely to kill within ten minutes.