Panic attack?

The best way to tell the difference is to simply visit the doctor and have your heart tested. If your heart is in good health, it's very unlikely you are suffering from a heart attack, especially if you have signs of anxiety. The good news is that there are plenty of easy tests to rule out any serious heart problems. Beyond that, there are very minute differences in the symptoms. Examples include: Chest pain from anxiety tends to be more localized and sharp, while heart attacks radiate and are often duller. Panic attacks rarely cause vomiting - a somewhat common symptom of heart attacks, although not in all of those that experience one. Panic attacks tend to be more systematic. They generally peak about 10 minutes in and then there is a slow and steady decline. Heart attacks can follow this same pattern, but it's less common. Otherwise, the best thing to do is get your heart checked and learn whether or not you're suffering from any heart problems. If not, then you're experiencing anxiety attacks.

Sounds very much like an anxiety/panic attack.

Anxiety can cause and aggravate a lot of health problems.

Anxiety often comes and goes.

Anxiety is a state of fear of real or imagined danger, which is manifested as increased heart rate, trembling, panic, weakness, extreme fatigue and stomach or intestinal discomfort.

Anxiety, depression, nervousness, worry or stress can cause over 100 symptoms or health problems as in a web search for "over 100 anxiety symptoms".

Prescription medication for anxiety, stress, nervousness, depression and worry can give you bad side effects so natural remedies are often much better.

Natural remedies for anxiety, stress, nervousness, worry and depression include exercise, Yoga, Chamomile tea, Melatonin, 5-HTP, Valerian Root, other herbs, vitamin B complex and other remedies as in a web search for "natural anxiety remedies".