Pressure, bloated, hard feeling on lower left abdomen, tender to touch. Felt when I cough & lean forward. Middle chest pain when cracking back. Cause?

Left lower abdomen. You could have an incarcerated hernia. Hopefully, it is not strangulating from your description. Better have it checked ASAP. You can check about your chest pain then. Doubt it is an item of real severity. Of consideration, have you been coughing a lot lately? H/o of asthma? Brochitis? It can be related to your develop of your hernia.