Sugar is uncountable; therefore, the sentence has a singular verb. Marbles are countable; therefore, the sentence has a plural verb. 3. Compound subjects joined by and are always plural. 4. With compound subjects joined by or/nor, the verb agrees with the subject nearer to it.
Panic disorder causes panic attacks spontaneous feelings of anxiety, terror, or impending doom. Physical symptoms include heart palpitations, chest pain, and shortness of breath. These attacks may be repeated at any time. People with any type of anxiety disorder may have panic attacks.
Physical Withdrawal Symptoms Can Lead to Anxiety. Anxiety is both physical and emotional, as the chemistry of mind and body interact. The feelings of anxiety may involve a myriad of symptoms, such as restlessness or edginess, fatigue, difficulty concentrating, blanking out, irritability and muscle tension.