I got a ct scan yesterday, is it possible to have allergic reactions today?

[animonster]

So yesterday around 8:30 at night I got a ct scan done for some sharp pains I had it my lower right side, turns out it was a cysts on my ovarie. Today after waking up i have a headache and I feel sick. My heart is beating haRd and my throat feels raw, I have anxiety but I don't think that's what this is. Is it possible to have an allergic reaction to the dye or iodine the day after getting a ct scan? I would like to know if it's just me over reacting. I don't really want to go to the hospital again. I also don't want to just get worse or fall really ill I've been reading some people's allergic reactions to it online and I think I maybe freaking myself out. Please help.

[animonster]

I am well now I had contact with the hospital and they informed me it was just a delay an to get rest thank you for your answers

[caregiver222]

The chances are this will go away, but you should immediately contact your doctor. With a dye-contrast reaction there is always the chance of a cascade of events. As suggested, drink plenty of fluids to wash out the agent. Go to the FDA site and report an adverse reaction to dye contrast.

[Ger57]

Delayed adverse reactions to contrast agents do happen.  The majority occur 6–12 hours after initial contrast material injection. Reactions are mostly skin rash, skin redness, skin swelling and headache.

I guess perhaps your headache could be a late reaction but also from not drinking enough or from anxiety.
All other symptoms you describe seem related to anxiety, but that is understandable. Having to go for a CT scan at 8.30 in the evening is something you do not do for fun.

Try to keep hydrated to fully flush out all the agent. If your symptoms really worsen you should contact the hospital of course, but I think you will feel better soon.