QUOTE: "Im 25yrs old - female-no other medical conditions-was fine up until last december..how can you not know your body has an infection and causes all this???"
>>>>>If you have a fever that would indicte you have an infection. If your heart rate is below 100 that is considered normal, and a consistently fast pulse may signal an infection or dehydration, but that should be a dx and not self analysis. A fast heart rate also leads to increased work and oxygen demand by the heart, which can lead to rate related ischemia (lower than normal blood/oxygen flow to meet demand). The heart's energy source for viable activity is oxygen as opposed to seletal muscle that rely on calories.
A healthy diet is known to be beneficial of one's health, and should be followed regardless of current health condition. Fish in the diet once or twice a week is known to help heart condtions, at least that is what one reads. Fish oil when be a good substitute.
Thanks for your question, take care,
Ken