Plantar fasciitis can linger when the tissue is repeatedly overloaded before it has adapted. Common reasons include tight calves, sudden increases in walking or running, unsupportive shoes, long hours on hard floors, limited ankle mobility, inadequate recovery, or stopping exercises as soon as pain improves. A good plan addresses the root contributors instead of only treating pain. If symptoms are not improving, your therapist may reassess strength, mobility, footwear, training volume, and whether another condition could be involved.