Postura corrections must. Avoid towards bending and do hot fermentation and stretching exercise of spine

Neck pain is mainly a result for bad posture at work & at home. While we are awake and conscious we try to be in a 'normal' posture but when you sleep, you are not aware of the posture especially if you are using a big pillow. A big pillow will keep your neck in flexion and your trapezius muscles won't get enough rest and will be cramped all along till you get it treated. As for your digestion problem... Have 1 tbsp cow ghee early morning with warm water and have small meals with high fibre content.

Neck mobilization Cold or hot pack for 10 minutes Strengthen neck muscles

Chiropractic Mobilization will help. Avoid bending in front.Postural Correction- Sit Tall, Walk Tall. Extension Exercises x 15 times x twice daily. Apply Hot Fomentation twice daily.

Seems like cervical spondylosis due to posture defect.... you need to visit a qualified physiotherapist for posture corection exercises and appliences.

Neck mobilization, hot and cold pack

I think your neck pain sue to gastric issues.yiuvneed to fix your got track first and start walking. If problem not sloved then go for therapy.