EE operated end loader . When shift was over, was dizzy. Foreman transported EE to office. On walk to truck EE crumpled, hurt hip. EMT-Ms felt EE had heat exhaustion, treated for this condition. EE transported to Hospital. EE kept for observation and rehydration, released on 2/22. EE released to work on 2/27, did not return. Went to another doctor that took them off work until 3/9.