Something In throat. It get dissolved!

I got ill on last Saturday evening, with throat pain, next day I get cold, cold has been cured as of now,throat has been cleared on Tuesday but throat still feels like something has in it, sound like paper while breathing, I am still doing gargle and steam, so as to avoid that, but It is not going. On Monday I cough whole day that at the end of the day, I am unable to sleep because of pain in chest and heart beat has also gone above 110 and there is slight increase in BP as well. On Tuesday, I had some difficulty in breathing of  heartbeat above 120, spo2 level was in between 94 to 96, by Wednesday my spo2 level in the night was in between 97-99, but normally it was remaining in 94 to 96. As of know, I didn't have pain in chest, heartbeat is normal but there is pain in liver, because of taking steam very hard. As of now I try to cough when I have some irritation in throat. I am not feeling thirsty as well even in Summer. I drink on my own so if there is any congestion, it get dissolved