Back pain. Length where it pains.

Many things missing in the question. Anyways, as u stated, u had these things earlier also. Since treatment part u have not mentioned. I assume u havent taken any sort of treatment. Lets do one thing, go for proper treatment, with a physio. Remember asking him/her about ergonomics and lifestyle changes. The site of pain u have mentioned is mostly due to sustained or bad posture. So, go for the physio treatment, that would include intial pain relief modalities, followed by stretching and strengthening exercises. Later or in the initial sessions only ergonomics would taught, so that u can maintain good posture at ur work also whether home or office. Note: Do not Ignore the pain. Since u have had these symptoms earlier, its high time u go for proper treatment.