Every pump there is gonna be a dump and every dump there's gonna be a pump. This is how digital currency works, they don't have a stable price. It is very volatile you should know it and you have to prepare that this scenario will always gonna happen.
Yes, I agree with you mate. That is very normal in bitcoin due to its volatility aspect. The value or price of bitcoin always depends on the supply and demand which are also not stable. If you want to invest in bitcoin , it is more preferrable to HODL or use longterm investment concept to gain big profits.