So generally the pain is static in regards to activity except lifting weights and pushups exacerbates the pain and lying down relieves the pain somewhat. You have a degenerative disc at L5-S1 with a central posterior disc herniation or “bulge”. You can continue to participate in most recreational activities with some moderate pain that is tolerable.
I will assume that you have gone through a good Pilates physical therapy program and ergonomics education. The next step if that is the case is a series of epidural steroid injections to reduce the sensitivity of the nociceptors and medications like NSAIDs or membrane stabilizers to reduce inflammation or nerve transmission.
Because weights and pushups cause pain, your pain may be from facet syndrome. A consideration of facet blocks might be indicated (see website).
Donald Corenman, MD, DC is a highly-regarded spine surgeon, considered an expert in the area of neck and back pain. Trained as both a Medical Doctor and Doctor of Chiropractic, Dr. Corenman earned academic appointments as Clinical Assistant Professor and Assistant Professor of Orthopaedic Surgery at the University of Colorado Health Sciences Center, and his research on spine surgery and rehabilitation has resulted in the publication of multiple peer-reviewed articles and two books.