Symptoms disappearing

Ok so im 12 dpo af due tuesday i was having nausea very sore boobs back pain extreme fatigue from 8 or 9 dpo and today nothing except extreme nausea and swollen ankles the past 2 days and teeth hurt from time to time but not as bad as before still bfn but i just have this feeling. Normally before af i have the works especially sore boobs but why is the symptoms disappearing? Any ideas?