Allergies surface when a person's immune system reacts to an antigen, such as—pollen, insect venom or pet dander and hackles, or food that otherwise does not cause any reaction to other people.
Your immune system produces glycoproteins, generally known as antibodies. When a person has any allergy, the immune system makes antibodies that identify a particular allergen as harmful, even though it isn't. When a person comes into contact with the allergens, the immune system's reaction can cause allergic reactions, which vary from person to person.
Distinguishing an allergy from a non-allergic condition is not always a definitive and easy task. But knowing the difference can be crucial as it can help you solve what is ailing you, and also help you determine whether you need some specialized medical attention or not. There are cases where something lethal is mistaken for an allergic reaction. Let us take a look at some general tips to help identify if you have any allergy or not:
Note the symptoms
Differentiating allergic conditions from cold or viral infections is very relieving for people. However, to make this distinction plausible, it is necessary to study and note your symptoms.
Allergic rhinitis, which is commonly known as nasal allergy symptoms affects about a quarter of adults. But a timely treatment can help reduce symptoms, in most cases. So, if you are unsure whether you have an allergy or not, list down your symptoms.
If the list mostly labels fever, greenish or yellow-coloured mucus, or joint and muscle pain, then it is more likely to be a cold. But if the list contains frequent sneezing; itchy, red, or watery eyes; clear nasal discharge; or scratchy feeling nose, throat or ears, the says you probably have an allergy.
Notice the occurrence and duration
The duration of symptoms and time of year the symptoms start to occur can help identify their cause. If you find that the symptoms have been staying for over two or three weeks or even a few months, it is probably not some seasonal cold. For example: if nasal allergy symptoms get worse in the spring or during autumn when the pollen count is usually high, then it is more likely to be an allergy.
However, if it lasts for a longer time, for maybe a whole year, then it might be due to indoor allergens, such as dust, pet dander, fibre particles etc. So, the duration and occurrence also help you understand the root cause behind any symptom.
Notice the upset stomach
Our stomach is probably the best alarming system of our body. If we consume something which is not supposed to be in our body, it reacts. It might not be a gastro problem alone.
So, in cases of food allergy, you not look for symptoms like stomach cramps, diarrhea, bloating, or upset stomach, but you also look for respiratory symptoms. There might be physical occurrences, such as rashes and marks. It is because food allergies usually cause a multiple system reaction.
So, if just one organ system appears to be involved, it is likely to be much more. You could be looking at some form of intolerance, insensitivity or even food poisoning.
Revisit your medical history
Your medical history is your fool-proof record of illnesses and overall health. When any allergy surfaces, you can check your reports and see whether you have been doing medically good or not.
You can also see your family medical history, for example: if you come from a family with a history of asthma, it will help you better understand your physical situation. You can also examine your diet and supplement intake, which might be causing this reaction in your body.
However, it is always better to have the present condition examined by a medical practitioner.
It is great that you can track and identify if you encounter any allergic situation. However, it is always great to visit a doctor or get a professional opinion.
A doctor or an allergist can give you a better insight and evaluation of your situation, through their various tests and examine techniques. Especially amidst this Coronavirus season, it is always wiser to not take any risks.
 https://www.mayoclinic.org/diseases-conditions/allergies/symptoms-causes/syc-20351497  https://www.webmd.com/allergies/features/could-it-be-an-allergy#1