Body Pain: If And When Is It Actually Worth It?

It is sad but true that people will do just about anything for money, fame, or looks. This includes enduring physical and mental harm.
These sorts of pains and aches can be caused by stress, lack of sleep, overworking the brain and body at your job or in the gym, and simply worrying.
Now is it really worth it?
One must strike a balance.  Moderation is key. You want to keep yourself healthy first.  You can't enjoy happiness and wealth if your overall well being.
The human body is made to endure only so much pain and abuse. Some bodies can tolerate less than others, and the risk is heighted with other factors such as age. Give it your all and try your best, but remember you are human. Your body and mind can only take so much.
No one can take better care of you than you. Therefore, people may call you soft or weak because you don't want the extra pressure and stress that comes with a harder occupation, a stricter workout regimen, or simply a drastic lifestyle change.
Here are a couple of famous quotes of note "to whom much is given, much is required" and "know thy self" by Socrates .  Your mind and heart have to also be strong. When others see this, they have little reason to doubt or criticize why you may fall short in other areas. 
Basically, no goal in life is worth killing yourself over. Practice common sense, patience, and good judgment in what you strive to achieve. Keep your stress levels low and your head clear. See your doctor, and check your vitals regularly.
You want to live a productive life, but also an enjoyable one. It is yours, not anyone else's. Therefore, take care of yourself and don't be depressed if you don't fit society's definition of happiness. Love and peace should be held in higher esteem.