They are two different protocols. Post Office Protocol, which works like a post office box, where you go to get your mail, and Internet Message Access Protocol, which works by synchronising with the server. In most cases, I recommend IMAP. These pages may help you decide:
Sure, some fresh injuries might hurt for a short time frame. However, unless there is a definitive neurological link, these will heal and the pain should stop. If not, then there is a good chance that the pain is not due to the herniated disc at all. So, some herniations can heal, some may not. Degeneration never heals. However, statistics show that healing is not needed in order for the back or neck symptoms to resolve.
It may also be called a slipped or ruptured disc. You can have a herniated disc in any part of your spine. But most herniated discs affect the lower back (lumbar spine). Some happen in the neck (cervical spine) and, more rarely, in the upper back (thoracic spine). A herniated disc may be caused by: Wear and tear of the disc.