I Overindulged On Red Wine Halloween Night And Having Been

I overindulged on red wine Halloween night and having been paying for it ever since. I woke up on Sunday with the obvious signs of a hangover. It has almost been four days and I still feel poorly, not as bad as Sunday but definitely still not myself. My neck and upper back have been hurting and I feel as though I have a lot of pressure on my head, which is probably the culprit of my dizziness. I've been trying to rehydrate with water and have been eating moderately due to nausea. I am still light-headed, feel flushed, but have not as of yet run any temperature. Should I have any cause of concern or just continue to wait it out, drinking plenty of water.