I went out dancing with heels and the next morning i woke up with a light purple colored toenail with pain. what should i do?

Bleeding under the: nail. That is why your nail is purple. Your shoes caused pressure on your toenail and caused micro trauma to the nail and it bleeds. Not a bid deal. If there is a lot of blood, pressure and pain, it needs to be drained. So see a podiatrist. If not too bad, it will dry out and you nail will start to clear out. Although this will take several months. Soaking it in epsom salt may help as well.