Many guerrillas fled yesterday morning as government soldiers closed in from three directions on the base in the north-western province of Banteay Meanchey. Phum Chat's capture left only several small Khmer Rouge-controlled areas still standing in the regions under attack. It is the biggest assault on the group since the UN peace-keeping mission began here 17 months ago.
For example, panic attacks, particularly those that occur at nighttime, may result in lightheadedness, which can in turn cause dizziness and hyperventilation. Patients with post-traumatic stress disorder may also feel dizzy when lying down, although this is rare.
Can bad posture laying in bed cause muscle tension in the neck with dizziness/vertigo. Yes: Bad posture in bed that impinges on the structures in the neck can do many thing like you suggest. Remember in the neck you are dealing with blood vessels, nerves, muscles & ligaments.