I experienced the same discomfort last year during my vacation when I played five days in a row on mornings and went swimming on afternoons. The soreness faded over 3 weeks, but the important thing is to avoid over extending yourself like that, especially if you are into your late 30s or over.
You may be however less vulnerable to such aches and strains depending on your overall fitness level. If the pain persists for more than one week, you should see a doctor.