M.M.
My DS was a whiney baby and I know it can be daunting. All you want to do is make your baby feel better!
First I want to comment that just because his gums are not red nor can you see his teeth coming in, doesn’t mean he is not teething so maybe try some Hyland Teething Tablets. Secondly, what really helped my baby was massage and soft music or a rock garden with water flow. I did that throughout the day and every night before bed. I’m not sure that there was ever really a “reason” for being whiney, but the contact with my hands to his body never failed. Especially when I would gently massage his belly and legs. Sometimes I thought he just was gassy from BF so I was careful with what I ate. If you formula feed it could also be that. My DS is 5 now and still likes for me to massage him.
I use lavender oil or lotion and all natural lavender soap.
HTH