Temporary dips are very common in bull runs, that's the way the market works. After a big run there is always a small correction, and after that comes the next run. Don't be afraid and hodl your coins.
Temporary dips are definitely not uncommon, however you never know which one is going to be the last before a true bear market sets in. And even though bitcoin is bullish in the long term, it's not as simple as bull run after bull run.
Right now, I think we are nearing the end of the current bull run.
A correction is definitely needed, and will occur soon in my opinion. There has been a lot of people buying out of the fear of missing out, and that means that the price is most likely overheated and a dip will come soon. I believe the markets will overreact to this correction, and potentially start panic dumping the same way they are panic buying now due to the FOMO. Also go against the market sentiment in panic sell/buy situations.