This is intended to foster a feeling of advancement through the hardest levels of the game
Healers: If you have lost constitution as the result of death, you may purchase it back from one of the NPC healers available Eve Isk throughout the Realm. Healers will remove PvE resurrection sickness at no charge, by right-clicking on them.
If you need to have constitution points restored, right-clicking again will prompt you with a popup window informing you of the cost of the donation required. If you accept it, the healer will restore as much constitution as you have money for.
Note that if you don't have enough money to restore a constitution point, a healer will continue to prompt you every time you right-click on them. If your constitution is not being restored, this is likely why.
Beginning at level 40, you will receive one half of your normal specialization points when you reach the half-way mark in the level (5 bubbles). This is intended to foster a feeling of advancement through the hardest levels of the game, where levels can be quite slow.
The maximum level in Dark Age of Camelot is level 50. While you can still gain experience beyond level 50, it has no effect on your character.
If you venture out a short distance from your starting town, you'll see plenty of creatures safe for your early training. Fight them to gain experience, and return to your trainer when you've progressed through each level.