If i have tingling in one foot with no swelling or redness or weakness could mean a blood clot ?

Probably not: Swelling, pain and discoloration may be symptoms of a blood clot, in particular in a leg vein. Tingling usually indicates nerve irritation, such as when a foot falls asleep after we cross our legs for too long.

No: Tingling with no other symptoms is virtually never a sign of a blood clot. Tingling is due to pressure on a nerve somewhere in that leg. The foot is the most likely place, but it could come from pressure on a nerve higher up in that leg.