As a health major, I can tell you that random bouts of stress is extremely normal for people to have at times. Usually, it can be relieved by getting more sleep, decreasing the amount of caffeine you drink, and the possibility of doing Yoga or some other form of calming exercise. However, if this stress starts to interfere with your daily life, then a trip to the doctor's is needed.
I mean, if a home remedy does work for you, then that's great! Usually a nice cup of herbal tea does the trick for me. But if you physically cannot handle a basic day of life because you are too stressed out and nothing is working, then I highly recommend you talk to your doctor or a psychologist to figure out why you are stressed out. It really isn't as bad as everyone thinks it is :)