Hello,
You didn't say if you're continuing your work, and carrying on with the lifting? If you are then you probably need to do some manual handling training by the sounds of it! You should never be lifting with your head forwards - no matter what! It puts immense strain on the back, and after a while it will start to complain!
Do you have a rehab plan with exercises to do? If not I suggest you get to see a therapist - whether it be physio, sports therapist, osteo, chiro, etc - and get a programme to help you develop your core stability and support your back.
Most important of all you need to take this seriously and make some lifestyle adjustments if you haven't already. Your work may come and go, but you're stuck with this body unfortunately, so perhaps it's time to give it some TLC!
Ruth Cheesley BSc(Hons) MSc MCSP
Chartered Physiotherapist