Do not travel without medical travel insurance, to put it bluntly, you are an idiot if you do not have it. It's not worth the risk. However, it may be covered through your current health insurance, or even your credit card. Call and check, but make sure you have emergency evacuation medical coverage. You can save your life.
Link to the article.
Here are some links for travel insurance, REMEMBER, make sure you have emergency medical evacuation coverage.
World Nomads travel insurance
Blue Cross travel insurance
Video credits to Noble Travel YouTube channel