Headaches are another common complaint. Your position is a key factor in management of these problems at work and at home. It is also important to avoid a head down position for any length of time as this leads to straining the back of the neck. Try putting your work on a reclining surface. A good lower back support is important to you to lean against.
Many people feel more comfortable with a small folded towel in the small of their back.
Just be sure it is not pushing you too far forward. Occasionally people purchase a specific back support. These are available commercially. Have your knees level with your hips. A footstool may be needed so that your legs are at the proper level and your feet are flat on the floor.