Thanks for your input @geekpowered about your experience with ashwagandha for back pain. Back pain - especially in the lower back, is unfortunately a very common problem.
Though ashwagandha can be a powerful tool to help alleviate painful inflammation, it's effectiveness lays heavily upon quality and dosage. Another factor is absorption capability by the body. Does your product contain any black pepper or pepper extract?
Working alongside CBD and turmeric is not surprising. This can be a great combination. A 'quality' CBD product alone can produce symptomatic relief and in some cases CURE; depending upon root cause of the pain (injury or disease)
I'm not surprised that it helped elevate your mood. It is known for that particular affect and may accentuate the result in combination with other mood modifying herbs - such as St. Johns Wort.
I'm happy to hear that you're exploring natural remedies and wish you well.