New allergy - is this normal?

[SundanceLeopard]

I've recently found that not only has my hayfever got significantly worse requiring me to have an inhaler, but I'm also starting to react to random fruits and vegetables. After having some carrot yesterday I came out in typical signs of having an allergic reaction - itchy throat, swollen tongue and lips, coughing, tingling feet and feeling dizzy. Symptoms lasted a few hours but thankfully didn't effect my breathing.

I've woke up today feeling absolutely groggy. Throat is so sore, headache that won't go away, still coughing and just don't feel myself at all. Is this normal? All very new to me as never had an allergic reaction like this before!

I have had a similar experience. My hay-fever (chiefly triggered by birch and hazel) got worse and then I started reacting to apples, nectarines, cherries and some nuts (especially, perhaps unsurprisingly, hazelnuts). My GP said these are cross or secondary allergies and not uncommon. The apple one is the worst for me. Peeled, cooked apple is fine but just eating an apple straight gives me an enormously puffed face and sore throat for a day or so.

Incidentally, if you know what your hay-fever is to, there are tables online that show you what associated cross allergies you might develop.

@Gulbekian thank you, I'll take a look. My little one has allergies so I'm used to seeing the symptoms but feeling bad the next day is something I've never experienced. I honestly feel so spaced out to the point I'm barely functioning.

Look up oral mouth syndrome

It's almost certainly oral allergy syndrome aka pollen food syndrome. A process of elimination should enable you to eliminate the culprits. Typically reactions are only to fresh fruit/veg, not processed or cooked.

If you Google it you can see the charts which show which fruits etc tend to correspond to which pollens so it might help with working out what's likely to be safe.

ETA: do talk to your GP though they're often not great on allergies IME, but there's good info on Allergy U.K.'s website.