Talk to Dermatologist on Skin Darkening

salam. mujhay pichlay 2 3 mahinon say face darkening issue horha hai meray galay aur chehray me zameen asmaan ka farq agya hai.. skin bhi dull hoti ja rai hai. unmarried hn, sexually active bhi nahi hn, stress hai bs thoda, nend bhi puri krti hn, water intake bhi zda hai pr us k bawajud theek nahi horha vitamin C bhi laga kr dekh chuki puray ek month, koi farq nahi para.. us k sath meray lips ka color bhi fade horha hai pehlay dark pink thay ab grey hotay ja rahay hain sath me lips pe spots bhi hain aur lipline pe bareek daanay kch smjh nahi arha mera confidence loose horha hai apni shakal ki vja say pls anyone can help?