As a beginner, I bought Bitcoins few days ago when the price was $43,943 with the hope that since the price has been increasing rapidly, that it will continue to increase but now that the price is dipping I now found out that the Bitcoins in my wallet is also going down.
Maybe you don't remember the amount of bitcoin that you bought. If you purchase bitcoin, no matter how dip the market goes, what will be affected is the value of the bitcoin that you bought. The amount that you used to accumulate bitcoin will be the only thing dropping, and the number of bitcoins that you are holding will remain the same. If you are holding 1 bitcoin, no matter how bitcoin dumps or pumps, your 1 bitcoin will always be 1 bitcoin, it's not going to increase or decrease.
If you notice that the bitcoin that you are holding is dropping, then I will recommend you change where the bitcoin is being stored. Maybe someone already has access to where you store your bitcoin, and you don't know, it might be the person who is stealing from your bitcoin. So just notice the amount of bitcoin, if there is a deduction in the bitcoin, then change where it's stored.
As long as your assets while you're holding is in bitcoin and any other cryptocurrencies that are not stable, you're bound to see the fluctuations.
I think you don't really understand the OP. The OP is claiming that there is a deduction in his bitcoin and not the value. Even if there is fluctuation, the only thing that will fluctuate is the value of the bitcoin and not the amount of bitcoin in the wallet, so I guess the OP didn't really know the amount of bitcoin stored in the wallet, or maybe someone is taking from the bitcoin in the wallet, or maybe the op means the value of bitcoin is dropping and not the bitcoin.