I had the worst allergic reaction last night. My eyes were itchy and swollen, causing them to water like mad. My nose was blocked and I started sneezing really violently. Worst of all, my heart was racing and I couldn't breathe properly, even through my mouth. I was wheezing.

Thank god for anti-histamines. Took a pill and willed myself not to panic. After half an hour, heart wasn't racing and my eyes weren't that swollen. Another half an hour later, I could breathe easily despite the blocked nose.

That was rather scary and I still don't know what I was reacting to cos I didn't eat or breathed in anything unusual. Ah well, thing is-it always pays to have some anti-histamines lying in your first aid kit if you have allergies or sensitive nose.