I am experiencing random swellings at places. Palms get red and are painful but for a short period of time. On my back and waist the spots look like bug bites but disappear in some time. Lips swell for no reason. Sometimes they're spotted on arms and look like mosquito bites. I am unaware if I am allergic to anything. Food intake items are normal as they have been before. I'm noticing all this since a past few weeks. Some days it happens. Sometimes it disappears for days.