I think I have metatarsalgia, can I ever be able to wear heels again?

Please add Comment. Can you tell us why you think you have that diagnosis. Also what height heels are you considering? Sometimes we need to go with function over fashion and put away (or sell) pointed or narrow-toed high-heeled shoes in order to avoid problems.
Sure. Options include: padding the forefoot portion of the shoe. Or, one can get injections of various fillers like collagen. (this will cushion the forefoot.) the more you limit the height of the heel, the less pressure you have on the bottom of the forefoot. So a 1 1/2 inch shoe is preferred to a 6 inch pump).
Yes. You need to treat the condition now and once it clears up you may be able to wear heels for short time periods.