The youngster had to be hospitalized late on Tuesday night after he complained of chest pain, breathing difficulties and coughing. PCB said that the 19-year old is 'feeling better' and has been released from the hospital.
The youngster has only played the first T20I at Karachi in the ongoing series and went wicketless while conceding 41 from his four overs. Pakistan are currently leading the series 3-2 and will play the remaining two matches at Lahore on Friday (September 30) and Sunday (October 2).
They are set to leave for New Zealand on October 3 for T20I tri-series featuring Bangladesh. Naseem could miss the start of that series which will be played from October 7-14.
Naseem made his T20I debut last month in the Asia Cup 2022 against India and became an integral part of the pace-bowling set up which was expected to suffer without injured Shaheen Shah Afridi.
However, Naseem's scorching spell of 2-27 on his debut followed by five more wickets in the tournament and two final-over sixes against Afghanistan helped Pakistan reach the final. However, without Naseem and Afridi Pakistan's pace attack have managed to defend totals of 167 and 146 in their last two matches.
Afridi is currently undergoing rehabilitation for his knee injury in London in order to fit for the T20 World Cup in Australia. Pakistan will open their World Cup campaign against arch-rivals India on October 23 at the MCG.