Back pain

[abilicious]

I currently have intense pain from muscle spasms in my lower back - left-hand side (for about 5 days). I did a mile and a half swim a week ago (using front crawl and unilateral breathing), but was fine until 2 days later, when I was emptying the dishwasher ... Is the swim the cause of the spasm, or should I give up emptying the dishwasher and get someone else in my house to do it ... for ever!