Hello, I have gone through your query and understand your concern. Yes. As you suspected, it may be due to Plantar Fasciitis. If the boots you are wearing are ill fit, it may the cause for your plantar fasciitis. Some people are more prone to recurrence of plantar fasciitis because of their work, long standing, wearing ill fit shoes etc. My advice is to give rest to the foot. Ice or warm pack in the painful area. Take pain killers like ibuprofen to relieve inflammation and pain. Do the toe stretches, calf stretches and towel stretches several times a day, especially when you first get up in the morning. If possible use proper fitting new shoes. Hope this helps. Please write back for further queries. Wishing you good health.