No, never makes me feel unwell.
But I adore super spicy curries with lots of chilli heat and am always combining together a variety of super hot chilli powders to make extremely hot phal or vindaloo curries.
Can't find a curry hot enough for me.
Some friends who can't cope with much chilli or paprika feel unwell unless they have a milkshake or ice cream along with the curry.
Eating too many portions of curry or not cooking the curry for long enough can also make people feel ill.