Also what does it mean when a female has high levels of testosterone? Should I be concerned? What should I do?

Yes, you certainly should be concerned, but not worried...!

How did you learn your testosterone was high to begin with...? If you were told by a doctor then he / she surely must have given you more information as well... If not, seek a better doctor...

It's important to maintain a recommended balance of testostorone and estrogen suitable for your own body as an imbalance can cause additional problems later, if not already doing so... If your body is not producing the necessary balance then medications will restore the balance required...

This does not mean medications for a lifetime, as age and diet also are meaningful to maintain the required balance too...

I hope this is the clue you are looking for...

How did you test it? Generally it'll just be whatever level you've got, but if it's a self-test thing then I'd be a bit wary of the results.

Women can have high testosterone levels which increases sex drive, but as long as it's not massively high then there are unlikely to be any major side effects like hair growth and muscle mass growth.

A few Russian athletes tried doing this by injection and that had some interesting side effects (see above), but they were really overdoing it.

What is the level testosterone should be for a female 65 years old