I canât itch and dissect a frog at the same time. My first memory of the prolonged itching sensation on my arms and neck was during a summer school biology course when I was 14 years old. The distraction of constantly wanting to scratch while trying to focus on cutting up a frog was pure torture.
1 Chronic sinusitis lasts longer than eight weeks or occurs more than four times per year, with symptoms usually lasting more than 20 days. 2  Sinusitis can be caused by viruses, allergens, pollutants, bacteria, and fungi. 3  Symptoms of sinusitis include. 4  runny or stuffy nose,  postnasal drip,
When they do occur, sick sinus syndrome symptoms may include: 1  Slower than normal pulse (bradycardia) 2  Fatigue. 3  Dizziness or lightheadedness.  Fainting or near 1  fainting. Shortness of breath.  Chest 1  pains. A sensation of rapid, fluttering heartbeats (palpitations)