Should have my new doctor taken my health concerns a bit more seriously?

I haven't been to a doctor for years! So I finally got established with one today. And went down the whole list of the top things I felt were the most important. I kinda felt like he blew off a couple things. I'm pretty positive I have arthritis (and maybe sometging else along with it)and have had back problems for 28 years. (At certain times I can barely walk) He said "What do you want me to do about it?" Then he pretty much told me it was because I need to lose weight. I told him I still had these problems when I was thinner.. Then I told him about what's been happening for the last 5 months or so. First I woke up (in the middle of the night) with an extremely bad headache that wasn't a migraine and didn't feel like a headache I've ever had before. Not long after that. Maybe couple weeks later, I started having these little tinges of pain suddenly hit me off and on throughout the day. And that happened for about 4-5 days strait. And have happened off and on ever since. He blew it off as sinus pressure and told me to get some nasal spray. I know what sinus stuff feels like. This was in my brain area, and it wasn't (pressure) it felt weird. . This is why I hate it when I get on here and ask the public what they think, then everyone resoonds with "Go see a doctor" lol I did and still don't have answers