DNA tests can obviously be of a sensitive nature and we are more than aware of this. All our DNA sampling kits are sent out in the post in plain envelopes marked Private & Confidential and with no branding on them, so it will look like a normal letter.
Shellfish Allergy Triggers. Within the shellfish family, it is the crustacean group (shrimp, lobster and crab) that causes the greatest number of allergic reactions. Many shellfish-allergic people can tolerate mollusks (scallops, oysters, clams and mussels). Avoid foods that trigger symptoms.
Shellfish Allergy Symptoms. 1  Vomiting. 2  Stomach cramps. 3  Indigestion. 4  Diarrhea. 5  Hives all over the body. 6  Shortness of breath. 7  Wheezing. 8  Repetitive cough. 9  Tight, hoarse throat; trouble swallowing. 10  Swelling of the tongue and/or lips. 11  Weak pulse. 12  Pale or blue coloring of the skin. 13  Dizziness or confusion.