Have you done rapid antigen test & its shows negative ....if yes then go for RTPCR...
If you have done RTPCR test & its negative then keep a watch on other symptoms of covid, wear a mask even at home,take precautions,use warm water always,steam inhallation with karvol plus & cough syrup,increase consumption of
vitamin C & antioxidant rich food...if along with anosmia other symptoms appear then repeat RTPCR test..