Plantar fasciitis ??

I guess I have the symptons of Plantar faciitis. I started to notice it since May during the inter department games held at my workplace where I represented my team in volleyball. I hadn't played or involved myself in any sport activities since 2004 inter dept games and never did any kinda exercises eversince. It's quite a pain on my left foot beneath the heel.

Tips
Using an ice pack or ice bath on the area for about 15 minutes may relieve pain and inflammation after exercise and work. Massaging the foot in the area of the arch and heel before getting out of bed may help. Stretching is also important. To reduce pain and help prevent future episodes of discomfort, stretch the calves on a regular basis. Stand with your hands against a wall. With one foot forward and one back, press against the wall, shifting weight over the front foot, while straightening the back leg. Keep the heel of the back foot on the floor and feel the stretch in the heel, Achilles tendon and calf. Then, switch legs.
Strengthening... To strengthen muscles, do towel curls and marble pick ups. Place a towel on a smooth surface, place the foot on the towel, and pull the towel toward the body by curling up the toes. Or, put a few marbles on the floor near a cup. Keep the heel on the floor and use the toes to pick up the marbles and drop them in the cup.
Another exercise is toe taps. Keep the heel on the floor and lift all of the toes off the floor. Tap only the big toe to the floor while keeping the outside four toes in the air. Next, keep the big toe in the air and tap the other four toes to the floor.