These anxiety symptoms include persisting insomnia, nervousness, and mood fluctuations. The most common adverse effects include appetite loss, dry mouth, anxiety/nervousness, nausea, and insomnia. Aerophagia in psychiatry is sometimes attributed to nervousness or anxiety. His mannerisms indicate nervousness, hesitancy, clumsiness, and insecurity. The anxiety is, however, more than just regular nervousness. These may be followed by polyuria, polydipsia, weakness, insomnia, nervousness, pruritus and ultimately kidney failure. Personal embarrassment is usually accompanied by some combination of blushing, sweating, nervousness, stammering, and fidgeting. Tyler also helps Skelton overcome his clumsiness, nervousness and naivety. Known mild side effects of mefenamic acid include headaches, nervousness, and vomiting. Neurotics experience tense arousal which is characterized by tension and nervousness. Moxie, he claimed, was especially effective against "paralysis, softening of the brain, nervousness, and insomnia". Some of the potential side effects included hyperactivity, impaired judgment, nervousness, and wild mood swings. Individuals may experience pre-implantation feelings of fear and nervousness. Bella knits together her eyebrows when feeling strong emotions such as nervousness. They also have a higher tendency towards nervousness and stress.