I have been having joint pain in my hands, fingers, balls of feet and toes. These areas feel sore, stiff and swollen?

I have been having joint pain in my hands, fingers, balls of feet and toes. These areas feel sore, stiff and swollen (they don’t look swollen though) every morning and sometimes during the day. I also feel very tired and like I’ve never had a restful sleep, even though I sleep 7-8 hours per night. This has persisted for 2 months now. I am a 30 year old female with a BMI of 20. I have a 2.5 year old daughter who sometimes picks up viruses which I then end up also getting. My inflammatory blood tests came back normal, my full blood panel was normal, also Ferritin, B Vits and Vit D were also all normal. I take no prescription medication, only an organic 1 a day multi vitamin supplement for women and 1000mg high quality omega 3. I took a high dose probiotic for approx 3 days around 2 months ago but stopped as this was around the time the symptoms started and I was worried the probiotics were causing the symptoms. I exercise 2-3 times per week and eat a varied, mostly organic diet. I suffer with anxiety and aside from this am in otherwise good health.