Radical 疒
12 strokes
illness 疒 (510b) + explosion 甬 (564a) = ache 痛
痛快 (403) tòngkuai overjoyed
[痛苦 (218) tòngkǔ painful, tortuous]

“Doctor, the illness I had before the explosion is gone but now I ache all over.” / “My dwarf assistant will use special tongs to remove the shrapnel, and then you’ll be fine,” replied the doctor.