Heel pain in the morning. To consult.

I am suffering from heel pain on left leg since 3-4 months. Heel pain is unbearable in the morning just after getting out of the bed. After few steps it gets reduced slightly. Test results , Glucose fasting - 83 Uric Acid - 6.0 RF/RA factor- < 8.4 Hemoglobin- 13.3 WBC- 5.0 RBC - 4.38 Consulted Orthopaedic , he said it's Planter Fasciitis and advised X-Ray and some blood test. X-Ray is normal. Prescribed some medicines but it did work. Then I consulted one Physiotherapist, he said it's Retrocalcaneal Bursitis, he did some treatment but it also not worked and there is no relief of morning pain We are doing some excercise also but stopped walking to avoid the increase of heel pain. Please suggest what to do and whom to consult.