I just did a little research on what the GP has pin pointed in 5 minutes of checking my body. I am sure the physio was just milking me because this was defiantly my issue for my lower back pain as I feel so tight in my hamstrings and my hip flexorIf you push on my abdominals I am so sore. I think the physio should have noticed this. Anyway here is a little reading I found if your interested
low back pain hip flexor
another article
Relief for an aching back: ease lower back pain right now, and prevent it in the future, with these simple pilates-inspired solutions - Natural Health Articles | Find Articles at CBS MoneyWatch.com